Solve a System by Graphing, Substitution, Elimination

To solve a system of equations we can graph, solve by substitution or by elimination. In this video we will cover all three.
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Пікірлер: 60

  • @BlooplyLooply13
    @BlooplyLooply1311 ай бұрын

    You're my go-to math teacher. Your videos have made summer school easier, especially because I'm learning completely new material at such a fast pace. I really need this, thank you.

  • @Daviddrt.
    @Daviddrt.7 ай бұрын

    Thank you I have a test on all three in 12 hours this has really helped.

  • @jsmoss5081
    @jsmoss50819 ай бұрын

    You explain this a lot better than my professor, she just right notes and expects you to figure out each step on your own

  • @sockpocketpre-alpha8258

    @sockpocketpre-alpha8258

    8 ай бұрын

    Dang what’s your English professor doing smh

  • @___king___

    @___king___

    7 ай бұрын

    @@sockpocketpre-alpha8258 english?

  • @sockpocketpre-alpha8258

    @sockpocketpre-alpha8258

    7 ай бұрын

    @@___king___ I think there was a clever joke in there somewhere but I can't remember what is was.

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    @@sockpocketpre-alpha8258 XD

  • @TheNamedVirtue
    @TheNamedVirtue3 ай бұрын

    Excellent video! I'm relieved you decided put all three methods in one video.

  • @SilverStorm68
    @SilverStorm68Ай бұрын

    I know i am late to the party, but thank you so much! If i don't pass this test, i'm going to loose out on High school credits, and i now fell 10x more confident in myself and my ability to do this!🙂

  • @hypeoptic654
    @hypeoptic654 Жыл бұрын

    Thank you so much for this compilation! I have a test on all of these in 2 days.

  • @brianmclogan

    @brianmclogan

    Жыл бұрын

    Boom!!

  • @MrMrMrMr.-mg5fu

    @MrMrMrMr.-mg5fu

    10 ай бұрын

    Send the test to me please

  • @Nikhilesh_Mavuru
    @Nikhilesh_Mavuru7 ай бұрын

    This is so helpful

  • @rachelrose8021
    @rachelrose80213 ай бұрын

    wow this helped a lot i have a test pretty soon good video!

  • @Speedy653
    @Speedy6535 ай бұрын

    Bro tysm, I needed this badly

  • @tearz__1125
    @tearz__11254 ай бұрын

    I love this man

  • @user-it6sm4vc8p
    @user-it6sm4vc8p4 ай бұрын

    such a great teacher👍👍👍👍👍👍

  • @vecteevs
    @vecteevs Жыл бұрын

    So talented math teacher!

  • @kittycatgamer3327

    @kittycatgamer3327

    Ай бұрын

    Agreed 🎉❤

  • @gravethedawnx4885
    @gravethedawnx48853 ай бұрын

    you make everything so easy can you please make videos on the harder things like quadratics and stuff

  • @brianmclogan

    @brianmclogan

    3 ай бұрын

    I have hundreds of videos on quadratics. Check out my playlists on my channel

  • @Buffering710
    @Buffering7102 ай бұрын

    You just saved my grade thank you so much.😁

  • @brianmclogan

    @brianmclogan

    2 ай бұрын

    You are very welcome!!

  • @Ba_A
    @Ba_A4 ай бұрын

    At 4:30 the graph solution given is not correct. The correct solution should have been (-2, -5). The graph was crooked.

  • @TeacherinNJ

    @TeacherinNJ

    3 ай бұрын

    I noticed that, too. If he would have plugged them into the original equation he would have caught his mistake. I love his videos but you’ve got a keen eye there.

  • @hamidzaidi4431
    @hamidzaidi44313 ай бұрын

    I don’t understand the way you’ve shown it why adding or subtracting in the first step of the equations

  • @Chickenfireball-pj9gl
    @Chickenfireball-pj9glАй бұрын

    3 hours of studying fit into 13 minutes

  • @akapasokopo
    @akapasokopo2 ай бұрын

    Is the graphing in the first correct?

  • @kittycatgamer3327

    @kittycatgamer3327

    Ай бұрын

    Idk 🤷‍♀️

  • @Keepyourthoughtspositive
    @Keepyourthoughtspositive Жыл бұрын

    I found graphing so confusing since you were a bit fast found it even shed to register anything 🙁🙁😩😩

  • @hamidzaidi4431
    @hamidzaidi44313 ай бұрын

    This is like a level maths. It’s dam hard

  • @zachhlovesmyyself
    @zachhlovesmyyselfАй бұрын

    What grades do you teach?

  • @user-bc6kv1br2e
    @user-bc6kv1br2e3 ай бұрын

    why did 12y+(-12) make it x=2 i dont get it pls someone understand

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    -30 and -28 made it 2. 12y is cancelled so it’s gonna be 0

  • @zesrdtfyguhiasdasfv
    @zesrdtfyguhiasdasfvАй бұрын

    i think the first one is wrong because i got (-2,--5,) i am using graph paper and i dont see the solution. Good video just a heads up

  • @ninacilliers3225

    @ninacilliers3225

    Ай бұрын

    I tried it out on my own, and got the same answer as Mr.McLogan... also --5 is not a number. Remember that two negatives cancel out and give a positive number.

  • @kittycatgamer3327

    @kittycatgamer3327

    Ай бұрын

    @@ninacilliers3225 yes, two negatives equal a positive 😀

  • @ronaldjorgensen6839
    @ronaldjorgensen6839 Жыл бұрын

    graph 1/4 pi in abstraction @ 45 degree rms sine wave as example also launch measure probe from 0/0 to intersect peak power inertia path of first 3 harmonicsmy pen goes dry trying

  • @johnnolen8338

    @johnnolen8338

    Жыл бұрын

    Why be a troll? McLogan is teaching basic algebra here, which has nothing to do with sine waves, peak power, or rms values. Though given the content of your comment I suspect that you don't know what any of those words mean yourself.

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    @@johnnolen8338lol

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    @@johnnolen8338lol 😂

  • @mynameisbakr
    @mynameisbakr7 ай бұрын

    11:04 what if it was 0

  • @MrMrMrMr.-mg5fu
    @MrMrMrMr.-mg5fu10 ай бұрын

    I am not understanding is there other way simpler

  • @VANEKsubsribe4cookie

    @VANEKsubsribe4cookie

    4 ай бұрын

    Yes

  • @angelm3853

    @angelm3853

    4 ай бұрын

    It's over for you

  • @Wally_darling-thewriter

    @Wally_darling-thewriter

    4 ай бұрын

    Well try to listen and then take notes on what he tried to explain. Or just what did you not understand?..

  • @nutglaze

    @nutglaze

    3 ай бұрын

    This dude elaborates too much it's confusing the students. Like when he says "you can replace them or substitute" like bruh just say substitute just keep it short and sweet they'll lose attention. Also simplify your vocabulary to them

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    I don’t know what to say..

  • @1nsporational_20
    @1nsporational_208 ай бұрын

    at 6:43 why does it -2x+4, and not 2x - 4 ?? someone pls expain

  • @jiyang4602

    @jiyang4602

    8 ай бұрын

    How did you get 2x - 4? You should only subtract 2x from both sides to eliminate the x and so, the y will remain.

  • @TeacherinNJ

    @TeacherinNJ

    3 ай бұрын

    You want to put it in slope-intercept form (y=mx+b) to keep it simple. Therefore, put the -2x before the 4. You never take the sign away from the number, so 2x cannot become -2x, and 4 cannot become -4. Since the negative is on the 2x then you have -2x and since the 4 has no sign it stays positive 4.

  • @akapasokopo

    @akapasokopo

    2 ай бұрын

    How do you get 2x-4?

  • @kathryncost851
    @kathryncost8514 ай бұрын

    lizzie needa stop yappin

  • @lotusflower7042

    @lotusflower7042

    4 ай бұрын

    my balls yappin

  • @mikesmith7620
    @mikesmith76202 ай бұрын

    Sir, are you by any chance taking students who've finished school? 😂😂

  • @brianmclogan

    @brianmclogan

    2 ай бұрын

    What do you mean?

  • @kittycatgamer3327

    @kittycatgamer3327

    Ай бұрын

    @@brianmcloganit is a joke 😂😂😂

  • @dahyununsworth3106
    @dahyununsworth31065 ай бұрын

    Kalbo

  • @stephennjogu5599
    @stephennjogu559926 күн бұрын

    😂 it

  • @CHIISANA_OTEN
    @CHIISANA_OTEN Жыл бұрын

    this is really good! compiling related videos!