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GCSE Maths - How to Solve Simultaneous Equations - Using the Elimination Technique

This video covers how to use the elimination technique to solve simultaneous equations.
This video is suitable for maths courses around the world.
KS3 - All on your course
GCSE Foundation - All on your course
GCSE Higher - All on your course
A-level - All on your course
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
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Пікірлер: 202

  • @juveria6536
    @juveria65362 жыл бұрын

    Cognito is definitely a channel all GCSE and IGCSE students should revise from ✋

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Thank yoooou! 😊

  • @alisakhan2919

    @alisakhan2919

    2 жыл бұрын

    I don't just Revise, it's my personal tutor

  • @jajalulujaju

    @jajalulujaju

    2 жыл бұрын

    Totally true, this channel is always the one i can understand and the videos are just so good to make notes, very neat!

  • @josey_wassal1374

    @josey_wassal1374

    Жыл бұрын

    True Cause after watching his videos I still wasn't getting it at first but I kept watching him And I passed my exams

  • @Abdillahi_

    @Abdillahi_

    Жыл бұрын

    True

  • @spacelien7201
    @spacelien7201 Жыл бұрын

    I've never been one to pass math ever but I recently got back my GCE N'Level Examination results and I thought I was going to fail since I only started studying last minute but to my shock I passed. I didn't pass with good grades but I still managed to pass and that's all I'm happy for. This channel really helped me understand math easily compared to when I studied in school. Thank you very much!

  • @hanifmohammed6945
    @hanifmohammed694516 күн бұрын

    Man cognitive explained it so well man I’m in year 8 about to go into year 9 and I learnt it in like the first few minutes. Ultimate combo cognito+freesciencelessons 🎉

  • @Marsva
    @Marsva Жыл бұрын

    I’ve always struggled with math and been close to failing in school but now I understand and have raised my math grade!!!

  • @alexa1338
    @alexa13386 ай бұрын

    This channel saves me every time I got a test 😂 my maths teacher actually explains it to different and barely anyone understands what she is saying half the time so thank you! 😂

  • @Palestine4Life.

    @Palestine4Life.

    6 ай бұрын

    So true😂😂

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    So true😂

  • @joshdawson1622
    @joshdawson16226 ай бұрын

    Honestly there are a lot of different revision channels with there respective learning patterns but the way cognito shows and explains the work for the specific video is great u can pause at any time to write notes tips and personal options down let alone the fact that cognito explains everything perfectly so that u can understand what u are trying to work out step by step is jsut perfect for all revisers well educated of not it’s perfect for everyone personally this channel is helping me a lot and by the looks of it this is 2 years old and still affective! So thank u I saw this in my maths book and thought I was going to suffer but not any more ✌🏽

  • @jsp1407
    @jsp14072 жыл бұрын

    Came here for the simultaneous equations step by step. Such a straight forward and easy-to-follow video. Thank you :)

  • @isaac-bz3us
    @isaac-bz3us3 ай бұрын

    Examine in 20 mins

  • @ephyx_

    @ephyx_

    3 ай бұрын

    Real 💀 (I’m cooked)

  • @iyo1x

    @iyo1x

    3 ай бұрын

    😂😂😂

  • @rockthegames2004

    @rockthegames2004

    3 ай бұрын

    Hahha I’m done for

  • @ansh8896

    @ansh8896

    3 ай бұрын

    real 😂😂😂

  • @andybrown1980

    @andybrown1980

    3 ай бұрын

    stop lying

  • @jaylota.
    @jaylota.2 жыл бұрын

    looking forward to the maths section on the website. Any rough idea of when it will come?

  • @minjeonglee3953

    @minjeonglee3953

    2 жыл бұрын

    Wondering that too! I'm guessing mid-year perhaps?

  • @andrewduffin5455

    @andrewduffin5455

    2 жыл бұрын

    it's out now if you don't already :)

  • @salhamaryamrilwan297

    @salhamaryamrilwan297

    2 жыл бұрын

    It’s available now

  • @stevengallagher635

    @stevengallagher635

    Жыл бұрын

    What would you be looking for from a Maths website and a youtube channel? I only ask as I'm in the process of making such a platform.

  • @jazzytownd4343

    @jazzytownd4343

    Жыл бұрын

    @@stevengallagher635 if its an interative question website some of the things i would be looking for is an interesting game-like experience with an encouraging atomosphere since many of the websites dont do that for gcse level students.

  • @foxtv9157
    @foxtv91575 ай бұрын

    My exam is in 15 minutes and I just found out how to do this!? I CAN'T BELIEVE IT!!!😂

  • @clovefells

    @clovefells

    3 ай бұрын

    Same😭

  • @FireWarrior177
    @FireWarrior177Ай бұрын

    I've never been one to pass math ever but I recently got back my GCE N'Level Examination results and I thought I was going to fail since I only started studying last minute but to my shock I passed. I didn't pass with good grades but I still managed to pass and that's all I'm happy for. This channel really helped me understand math easily compared to when I studied in school. Thank you very much!Honestly there are a lot of different revision channels with there respective learning patterns but the way cognito shows and explains the work for the specific video is great u can pause at any time to write notes tips and personal options down let alone the fact that cognito explains everything perfectly so that u can understand what u are trying to work out step by step is jsut perfect for all revisers well educated of not it’s perfect for everyone personally this channel is helping me a lot and by the looks of it this is 2 years old and still affective! So thank u I saw this in my maths book and thought I was going to suffer but not any more

  • @_stray.kids_5215
    @_stray.kids_52152 жыл бұрын

    I recommend this channel for all student who takes IGCSE, its very help full :)

  • @aishamuhammad413

    @aishamuhammad413

    6 ай бұрын

    not relevant to the topic but *LOVE STRAY KIDS...!!*

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    Huh what my brain just malfunctioned from hearing that you love …. Stray kids

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    You just pulled a drake 💀

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    Wait is it a tv show sorry if I am wrong

  • @fordino

    @fordino

    2 күн бұрын

    @@hanifmohammed6945stray kids is a band 😭😭

  • @memososy9091
    @memososy9091 Жыл бұрын

    I really like the way this channel explains as it helps me understand all the topics I am doubtful in. Thank you and keep it up!

  • @lvin_ohh
    @lvin_ohh2 жыл бұрын

    OMG thanks cognito 😭, I finally have a better understanding of the equation, really thanks. This channel legit help me alot, math physics chem, its like my tutor 😭 TYVM 🥰

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Ah thank you so much for letting us know Jolyn, glad you like it 🤩

  • @videovideoyeah
    @videovideoyeah2 ай бұрын

    This is the best channel for exams 😊

  • @CustomBeet28105
    @CustomBeet281052 ай бұрын

    why did nobody tell me it was this simple ive been struggling with these for ages

  • @madeleinej6048
    @madeleinej60482 жыл бұрын

    Hi! I know you have so many other requests but if you have time would you be able to consider doing a video on venn diagrams? I’m not doing the best at maths and I’m struggling a little with this topic and your videos are the only ones I learn from :))

  • @jaehyungdemrek1612
    @jaehyungdemrek16122 жыл бұрын

    Finally, a video that actually helps! Anyone relates?

  • @saraa4946
    @saraa49462 жыл бұрын

    Thank you so much! I’m literally glued to this channel, keep up the good work and thank you for everything ❤️

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Aha thank you so much SaraH, glad you like it 🤩

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    Me to

  • @bobeh_
    @bobeh_4 ай бұрын

    Underrated channel ngl , you should really make ur self known to ppl

  • @shannelchikumbu3385
    @shannelchikumbu338511 ай бұрын

    This channel really helps understand concepts that I failed to understand at school

  • @hryanmahajan4264
    @hryanmahajan42642 жыл бұрын

    I suggested your channel to all of my classmates and they found it very helpful I must say tho, the website is a piece of work! it is very helpful tho can you add 2021 and 2020 papers too? Thanks have a good day!

  • @jasonrauch6326
    @jasonrauch63262 ай бұрын

    thank you so much for the great explanation

  • @sharone5802
    @sharone58022 жыл бұрын

    Hi, I hope you are having a great day. I was just wondering if you could possibly make videos related to history in the future, because you guys make such great videos which are easy to understand and filled with information, and a lot of people would probably like history videos. Also, when can we be expecting the math part on the website?

  • @jajalulujaju

    @jajalulujaju

    2 жыл бұрын

    I think for history you just have to memorise like know the timings and what’s going on that time and also remember the answer structures.

  • @hamzr.5518
    @hamzr.5518Ай бұрын

    Thank you so much may god bless you your the GOAT 🙏🐐

  • @self.living
    @self.living Жыл бұрын

    We need more channels like this! Thank you so much cognito!

  • @kingvortex-m1n
    @kingvortex-m1n6 ай бұрын

    4:57 idk of im just being stupid but i dont understand how het got that from -2x from both sides.

  • @whereruneeb

    @whereruneeb

    5 ай бұрын

    bc -2x from the right side just takes it away from that side completely and adds -2x to the opposite side

  • @jakefree1094
    @jakefree10942 жыл бұрын

    Will you be updating your website? On the website it says some of the videos are "coming soon" but are already posted on the channel

  • @theoneandonlyanimates
    @theoneandonlyanimates Жыл бұрын

    Omg, thank you. You helped me pass some of my tests this week thanks ❤

  • @cyrahauske
    @cyrahauske6 ай бұрын

    I'm doing this work at home when I'm in grade 6 because our school doesnt teach us math that is complicated enough. I didn't realise it would be GCSE, but I think I will follow this channel and continue with stuff like this ❤️

  • @bruhrito1437

    @bruhrito1437

    5 ай бұрын

    That’s probably because you wouldn’t learn this till you’re older, at least where I’m from we didn’t do this kind of stuff in grade 6

  • @nour3660
    @nour3660 Жыл бұрын

    You made it SO easy, i have paper 2 maths tomorrow (or actually today, at 8:00am, its 12:00 am rn) Edit: 1 simultaneous equation came and i fumbled the ball 😭😭😭😭. Im so bad at math and good at everything else WHYYYY

  • @erikgerbst3446
    @erikgerbst34468 ай бұрын

    i kept denying that i was right cause i got a non integer awnser but then i kept watching and realized im too tired to revise and went to sleep

  • @isabellashin4307
    @isabellashin43074 ай бұрын

    Just a quick question, how does y=1 at the start? I understood everything up to that point, 2y=2 so how would y=1 x

  • @elopzx

    @elopzx

    3 ай бұрын

    Because if 2y = 2 then a singular y (1) = 1y

  • @indrabahukhandi7580
    @indrabahukhandi7580 Жыл бұрын

    Thankyou so much ❤ my child is in Gcse board he was having problem to understand science and maths of gcse board but it is easier for him to learn now thankyou😊

  • @arts--n--craft
    @arts--n--craft6 ай бұрын

    In the 2nd equation, at '6:21' the solving is wrong: Y - 6Y is not 7Y, it is (-5Y)

  • @arts--n--craft

    @arts--n--craft

    6 ай бұрын

    no wait. Its y - (-6y)

  • @arts--n--craft

    @arts--n--craft

    6 ай бұрын

    ok got it sorry

  • @ljdbnts9825
    @ljdbnts98252 ай бұрын

    Thanks man 😎

  • @RobertAnderson-ef6xy
    @RobertAnderson-ef6xy2 ай бұрын

    Thanks 😄

  • @Mitsuha445
    @Mitsuha445Ай бұрын

    Thank you!

  • @Palestine4Life.
    @Palestine4Life.6 ай бұрын

    Thx all to u ive finally learnt how to do it THANK YOU SOOOO MUCH❤

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    Ngl you have a point

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    I love your name bro

  • @Palestine4Life.

    @Palestine4Life.

    16 күн бұрын

    @@hanifmohammed6945 thx

  • @Palestine4Life.

    @Palestine4Life.

    16 күн бұрын

    @@hanifmohammed6945 thx

  • @paulastreet4557
    @paulastreet4557 Жыл бұрын

    Thank you so much for a great explanation of this technique!

  • @fremilaa1069
    @fremilaa10693 ай бұрын

    wait so on example 2 harder i thought the rule was hat if the signs were opposite you had to add and if the signs were the same you had to take away im so confused #

  • @Gems4clash

    @Gems4clash

    3 ай бұрын

    Same

  • @pela-me4cf
    @pela-me4cf2 ай бұрын

    I do not understand example two

  • @ragnability4232
    @ragnability42322 жыл бұрын

    Hi sir, could you please make a tutorial on how to find the nth term of other types of sequences?

  • @emilythomas9363

    @emilythomas9363

    2 жыл бұрын

    hi, there is a video on it on the website and their yt channel

  • @PrincessPanda-xt2dk
    @PrincessPanda-xt2dk5 ай бұрын

    Cognito is a really helpful channel all the questions are done in a really easy method easy to understand and well explained 😊

  • @ii_MnBCT
    @ii_MnBCT5 ай бұрын

    Bro needs to be my teacher for all of my leasons

  • @Kate-yl1wc
    @Kate-yl1wc9 ай бұрын

    1:14 subtracked is cracking me up for no reason 😹😹

  • @flash_monitor
    @flash_monitor8 ай бұрын

    your learning website is so GOOD thank you so much bro you are the best!!!!!!

  • @kisanethabteslase4814
    @kisanethabteslase48142 жыл бұрын

    Hi! I know you have many request but if its possible can make a video on sets, vectors & function pleaseee. Coz these topics are tough.

  • @user-qp9wq2ct2q
    @user-qp9wq2ct2q3 ай бұрын

    This is the one that I’ve understood the most so far

  • @zxdieww
    @zxdieww5 ай бұрын

    OMG. Ty I've been looking for this everywhere I have liked and subscribed!!!

  • @fad3769
    @fad37694 ай бұрын

    Man this actually works im studying on the night before my final exams and this helped me sooo much like no other teacher as able to make me understand this but this guy made me understand it in like 5 mins. i actually may pass the exam for once In my life and im one of the dumbest in maths

  • @noname-gr1uf

    @noname-gr1uf

    4 ай бұрын

    Omg same

  • @Tetrasondayz
    @Tetrasondayz2 ай бұрын

    how is y + -6y = 7?

  • @fraudulentminke_

    @fraudulentminke_

    Ай бұрын

    it's subtracting, so what we're actually doing is y - -6y but since there are two subtract symbols, it turns into addition, so in the end you're doing y + 6y to get 7y I'm not the best at explaining and I'm assuming you were revising for GCSEs which have already passed, but oh well 😅

  • @kanamonnair4126
    @kanamonnair41262 жыл бұрын

    Cognito i think you should make make a video on the other method used to solve simultaneous which is substitution

  • @lammieshipper
    @lammieshipper Жыл бұрын

    thank you SO much for this video, what a livesaver

  • @bombi8709
    @bombi87092 жыл бұрын

    I love this video cognito thank you

  • @trinityleeman7069
    @trinityleeman70692 жыл бұрын

    Cool

  • @JaydenPullen-uz1cs
    @JaydenPullen-uz1cs6 ай бұрын

    Yeah im finished

  • @user-po1uk2of6g
    @user-po1uk2of6g2 жыл бұрын

    Awesome!

  • @user-ro3yb6hq2v
    @user-ro3yb6hq2v10 ай бұрын

    thank you so much for this really clearly and effectively explained.

  • @DoMoreNew
    @DoMoreNew Жыл бұрын

    Hi! I absolutely love your videos! Question - is there a video for solving simultaneous equations using substitution? One of your videos said that there's a video for that but you've got 2 graph videos linked to simultaneous equations and one video on elimination. Anyways, you don't realise how much this is helping us!

  • @anson1888
    @anson18882 жыл бұрын

    can u make a video on simultaneous inequalities

  • @zeemish
    @zeemish4 ай бұрын

    Hello Cognito This video is not on the website by the way.

  • @violetxo7512
    @violetxo75128 ай бұрын

    Can you please please start doing Alevel content.I loved cognito for gcse it got me 7s and above in maths and science and nothing compares with your videos.

  • @thevillage.j
    @thevillage.j6 ай бұрын

    bro thank you so much the other video i watchde i struggled getting the method

  • @DrHershi
    @DrHershi2 ай бұрын

    im so confused bro. fym take away 2x from both sides i dont get it

  • @saab4584
    @saab45842 жыл бұрын

    Excellent work

  • @hanifmohammed6945

    @hanifmohammed6945

    16 күн бұрын

    Definitely 👍 💯

  • @Cookingmaster804
    @Cookingmaster80418 күн бұрын

    Thank i so muchhhhhhh

  • @ALI_gator10
    @ALI_gator104 ай бұрын

    tysm way better than my math teacher

  • @torielschild
    @torielschild4 ай бұрын

    Thank you for your help!

  • @TranquilSeaOfMath
    @TranquilSeaOfMath9 ай бұрын

    Excellent explanations. Nice, helpful animations.

  • @Sapiention
    @Sapiention9 ай бұрын

    Honestly this is the only thing getting me through my GCSEs rn icl😭🙏🏼

  • @ROCKY-pu1zt
    @ROCKY-pu1zt6 ай бұрын

    I'm trying to get into Medical school and this was great

  • @imbisatfarey
    @imbisatfarey Жыл бұрын

    thank you so much you explained so well

  • @sadikagunarathne4974
    @sadikagunarathne4974 Жыл бұрын

    Great channel! Appreciate the effort! Keep up the great work! ❤️

  • @hesk5868
    @hesk58684 ай бұрын

    how do you know whether to subtract or minus on the first step ?

  • @joyfords5082
    @joyfords5082 Жыл бұрын

    This helped me only 2 minutes was left for the examination

  • @SalmanHassan-pg2ur
    @SalmanHassan-pg2ur7 ай бұрын

    thank u sooo much it helped alot

  • @hanifmohammed6945
    @hanifmohammed694516 күн бұрын

    I am in year 9 haven’t been taught in school and I leant it in the first 2 min😂

  • @tinpotz_e
    @tinpotz_e5 ай бұрын

    thanks im just a kindergarden and now i learnt hight levels math

  • @xlwxn._
    @xlwxn._2 жыл бұрын

    i just have to say that singapore’s method is way harder than this as they are more steps than this one.

  • @videovideoyeah
    @videovideoyeah2 ай бұрын

    Thanks

  • @Vanessa-lima
    @Vanessa-lima3 ай бұрын

    6:24 what if our answer cant be divided

  • @hadiqaa7336

    @hadiqaa7336

    2 ай бұрын

    i think you mean what if the divided answer is a negative/decimal, which is fine. for example 5y = 66 we HAVE to find Y. So you HAVE to divide even if it’s not divisible by 5. so 5y = 66 = 66 divided by 5 = 13.2 Y = 13.2. this is a random example btw. sorry if u dont get it but yeah its ok if u have negatives or decimals, good luck!

  • @Sss.sassyyy__
    @Sss.sassyyy__11 ай бұрын

    Hi could you please make a video about substitute method thank you❤❤

  • @jajalulujaju
    @jajalulujaju2 жыл бұрын

    This is totally helpful, and it is so easy to understand and take down notes! Thanks

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Glad you like it! 🙌

  • @muhammadibrahim5965
    @muhammadibrahim596510 ай бұрын

    Excuse me, I umm.... didn't understand in the second example how did -6y+y become +7 ...I know that +7 is correct but I don't know how.... that's it.... Because according to my brain and calculator the answer is -5y.... Please anyone clear my doubt....

  • @The_Colourful_Chicks

    @The_Colourful_Chicks

    3 ай бұрын

    Exactly also saw that it was an error

  • @Rengoku_fan

    @Rengoku_fan

    2 ай бұрын

    yh, its a error from cognito, ignore it

  • @SlayFedez777
    @SlayFedez777 Жыл бұрын

    Hey bro, I hope you have a great day😁! Cognito is just the right type of channel which gives us clear solutions to the selected topics. You have really helped me improve and get over my barriers and improve to the most! Thank you so much, Cognito! 🔥😎👍🏻

  • @OmarMohamed009
    @OmarMohamed0099 ай бұрын

    thank you🤩🤩

  • @user-zt6te6ky7w
    @user-zt6te6ky7w10 ай бұрын

    Can you do the video of Substitution method

  • @markkerbyson8778
    @markkerbyson87782 жыл бұрын

    It's interesting topic

  • @HughIngram
    @HughIngram5 ай бұрын

    2 min in and i love you

  • @benpeps3500
    @benpeps3500 Жыл бұрын

    My question is that why is +y-6y is= 7y

  • @SomeOne-zz6oi

    @SomeOne-zz6oi

    5 ай бұрын

    y - -6y

  • @Shadowehunter
    @Shadowehunter10 ай бұрын

    How do we know wather to minus the equation or plus

  • @ghostfacethescienceguy7770
    @ghostfacethescienceguy77704 ай бұрын

    Why do you have to take away -2x at 5:29

  • @kenzieb2971
    @kenzieb2971 Жыл бұрын

    6:30 all I don’t understand is how he got 3y for the second step when he is taking away

  • @icxy4887
    @icxy4887 Жыл бұрын

    I normaly get high marks but i get even high with cognito so tysm for helping everyone

  • @joshtulasoi9634
    @joshtulasoi9634 Жыл бұрын

    What app do you use to make your videos?

  • @LuvPlayboi

    @LuvPlayboi

    9 ай бұрын

    fruit ninja

  • @NexusXC_YT

    @NexusXC_YT

    7 ай бұрын

    @@LuvPlayboi lol

  • @mayh-m
    @mayh-m8 ай бұрын

    My exams today lol

  • @Larry6393

    @Larry6393

    3 ай бұрын

    My exams are now

  • @Trixsti
    @Trixsti10 ай бұрын

    How is 3y-2x=-2x what

  • @ayaanahmed2692
    @ayaanahmed26922 жыл бұрын

    isnt +y - 6y= -5y ? why is it +7y

  • @dolapoogundele1717

    @dolapoogundele1717

    8 ай бұрын

    a negative and a negative make a positive

  • @4ye5h45

    @4ye5h45

    8 ай бұрын

    @@dolapoogundele1717 but doesnt y have a positive symbol next to it? or is it because he is subtracting the two equations..? would you mind explaining? :(

  • @whereruneeb

    @whereruneeb

    5 ай бұрын

    @@4ye5h45yeah but it is y - - 6y (2 negatives consecutively = addition)

  • @OlubiyiOlubola-fc9lf
    @OlubiyiOlubola-fc9lf Жыл бұрын

    I had difficulty in it but not am good at it