Elementary Row Operations Matrices 3x3 Linear System
Learn how to do elementary row operations to solve a system of 3 linear equations. We discuss how to put the augmented matrix in the correct form to identify the solutions and the correct order to do the steps in.
Related Videos to Help You Succeed!:
Gaussian Elimination with Back Substitution
• Gaussian Elimination w...
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Пікірлер: 158
Anyone else hating life Rn
@Vegito-Black
6 ай бұрын
me bro i studied so hard and i got 27/100 in math😢😢😢😢😢
@DarkPrincess_M
6 ай бұрын
Me
@arfaansharief5365
4 ай бұрын
@@Vegito-Blackripp
@rydermackinnon8113
2 ай бұрын
Is that a pun
@prabhnoorsingh7365
Ай бұрын
Rn classes?
Best Strategy for RREF: Start by making bottom left 0. Make every number zero except for the diagonal. Multiply the equations so that the diagonals are 1s. It's tedious either way, but you gave a very clear explanation. Thank you!
@lillianidahosa3266
Жыл бұрын
thankyou !:)
I was struck at this for hours now, this got cleared in a few minutes, thanks a lot sir !
watched so many vids on this type of question, including khan academy. THIS IS THE BEST ONE. THANK YOU SOOOOOOO MUCH
@MariosMathTutoring
4 жыл бұрын
You’re welcome William!
@tee5798
2 жыл бұрын
I tried with Sal too but he kept saying add this row to 2 times the amount of this row and all the "this row"'s are IMPOSSIBLE to take notes on... "here", "there", "this one"... not easy to understand
I have been struggling with matrix operations for a while and this is the best video I've found! Cleared the concept up in 10 minutes. Thank you very much, sir!
This is the best video I've watched on RREF. Absolutely saved me.
THIS IS THE BEST EXAMPLE SO FAR I GOT FROM KZread! THANKYOU SIR.
I was able to find the inverse of a matrix using row operations for the first time after viewing this class. The tip about working from the bottom left corner, then focusing on the top right corner really helped.
Thank you so much for teaching this ! Before I found this video I was struggling doing ero . But now I can do it smoothly . 😭
mario your videos saved me last semester in stats, now with your help i will pass linear algebra 🙏
whowwww coooooooooool!!!! when I was introduced to this topic and hour ago, I was confused, but thanks for making it clear now
Having a test tommorow and had a lot of problems with this certain part, thank you for this information
after a long semester i now can do this confidently thanks
I find this video pretty easy to understand, as long as I first try the question by myself first and pause the video if I get stuck...Thank you !
I have a test on this next week! thx dude
Thank for helping those who really need to solve such problems
You, my good sir, are THE GOAT
Thank you so much! What if the coefficient for x in row one is more than 1? Would I need to make it one first or anytime while solving the problem?
I'm ur student, from India , respect u sir, thank you for the video,
This was such a great help in coaching my daughter through her Algebra lesson this morning. Thank you!!
@MariosMathTutoring
5 ай бұрын
Glad it was helpful!
i have my semester finals tomorrow, this helped me soo much!!
great video, hoping all your videos are this helpful
beautiful explanation im proud i understood that immediately
This helped a lot man, really appreciate it
Love ur lectures!!! Thannnkss!!!
Thank you professor, touchdown
This is really good work thank you so much
Thanks a lot, Explained it so well.
Thank you so much!! I was so confused for days but now I finally figured out how to solve it :D
Bless your soul you're a hero
You could teach differential equations to a 5 year old. Awesome video sir. Thanks!
You saved my life thank you so much 😭😭😭😭🙌🙌🙌🙌🙌🙌🙌
this video is a LIFE SAVER
Man, this is great; helped me alot! Thank you so much!
@MariosMathTutoring
Ай бұрын
Glad it helped!
That was fun yo watch thanks
Hi! Is Gaussian Elimination and Elementary Row Operations the same thing?
Thanks Sir, I understand it in first go.
Thank you sensei.
your a great teacher
😭😇👏👏👏👏you made this so easy to understand thank you
thankyou so much it was helpful to me.
So you can choose in which row of the rows you use you put the answer?
Excellent Explanation , just wanted to know that if i'm getting 1's diagonally but my values are different of x , y and z , will it still be correct
@JustinPitera
2 жыл бұрын
yes x y z in matrix are satisfying x y z from the original system
Just wanna say thank you.🙏
The best of the best 👌
Tq, it's so easy to understand 😊
THANK YOU SO MUCH
Instead of doing 3R1+R2=R1, couldnt you have just multiplied R1 by -1/2, R2 by 1/6, and R3 by 1/2?
thank you!!
Thank you so much sir
i know a master when i see one .... you are the shaolin dude of maths
Thanks a lot
Thank you!
@MariosMathTutoring
4 жыл бұрын
You’re welcome Siphesihle!
thank you sir
ty so much🤗🤗🤗 sir
Thank you ❤️
@MariosMathTutoring
4 жыл бұрын
You’re welcome Muscab!
Bravo!
Hi, I have a question about the third step at 3:38. Some textbooks said we can add a scalar multiple of one row to another row, and replace the latter row with that sum (Ex: 3 x row1 + row 2 = row2). In this tutorial, you multiplied second row with -2 and add to the 3rd row, but the new answer becomes 2nd row. I am a little bit confused…..
Thank you!!
@MariosMathTutoring
3 жыл бұрын
You’re welcome!
Thank you, very helpful
@MariosMathTutoring
4 жыл бұрын
You’re welcome Kyle!
Brilliant
THANKYOUUUUU
Thank you so much
@jeraldthomas4381
3 жыл бұрын
Love from india
Danke!
By "non-zero constant" do you mean any number? Does the number have to come from one of the equations or can it be anything?
@gingermuro6388
Жыл бұрын
i was confused on this too, did you ever find out? Also do you know if you can multiply the rows by fractions, ex 1/5 or something
@xmimu9738
Жыл бұрын
@@gingermuro6388 yes you can
This is good
is it possible to solve it with two equations? like example 2x +3x =6 x -- y =2
Sir y u start on last ro ? And Y u not star on any row ?
I think I'm going crazyyyy after watching this LOL
My guy thank u
in the first step, why did you call the 6 a negative 6?
This video really helped!!! May Jesus bless you
Does this work for things like a 2x3?
@MariosMathTutoring
4 жыл бұрын
Yes.
Can you sometime do more challenging quastions
Just a quick question: If you were to perform row operations on Row 1 and Row 2, could you choose whether to put the answer in row 1 or row 2 or is there a specified row the answer should go on?
@MariosMathTutoring
4 жыл бұрын
You can put the answer in either one Timothy!
@timothytan3882
4 жыл бұрын
Thank you so much!
absolute goat
thank you good video
@MariosMathTutoring
11 ай бұрын
Glad you enjoyed it
Thankyou so much
@MariosMathTutoring
4 жыл бұрын
You’re welcome Jade!
Quick questn: is the order of the first augmented matrix a 3x3? Or 3x4?
@MariosMathTutoring
4 жыл бұрын
Isaac, The dimensions are 3 x 4. Three rows by four columns.
@williamahyoung4504
4 жыл бұрын
Thank youuuu 👌
@williamahyoung4504
4 жыл бұрын
@@MariosMathTutoring have a good day/night there sir. Much appreciated
You can do this with any 3 equations right?
nice
THANK YOU CIKGU BOTAK
Wow someone who actually knows logic.
@MariosMathTutoring
4 жыл бұрын
Glad you liked the video!
Thank you Sir. May Allah reward you.
@MariosMathTutoring
4 жыл бұрын
You’re welcome Abdul!
Hi sir, it is quite interesting video. I have a question about R1+ -1.R3 -> R3. on the third row why you get number "2" I still cannot find the reason? I have already calculated it. 1 1 1 ⎢ 2 2 -1 3 ⎢-7 0 0 2 ⎢ 6 The first zero is came from: 1 + -1.1 = (+ meet - become -) so it is 1 - 1.0 = 0 and the second zero is came from: 1 + -1.1 = 1 - 1.0 = 0 But for the last one: 1 + -1.-1 = 0. -1 = ... is it supposedly 0 too? I hope you can help me to find where the 2 come from? I'm a new beginner in Algebra Linear, and I'd like to study. Thank you
@MariosMathTutoring
4 жыл бұрын
Feriks, this other video I did may help you to understand it better: Gaussian Elimination with Back Substitution kzread.info/dash/bejne/nIN3lsiGl8-dhKw.html
@George-om7gf
4 жыл бұрын
u just cant count bro
@feriksadmadiredja765
4 жыл бұрын
@@MariosMathTutoring thank you Mario
@casexy3447
4 жыл бұрын
Feriks Admadiredja lmao i thought the same thing. i’m so confused
@feriksadmadiredja765
4 жыл бұрын
@@George-om7gf Lol, yes I do not understand that part. But you are incapable to give the explication. So sad. The matter is unsolved by this. Lol
In some examples we should change the raws but I didn’t understand when should we change 😭
🙏
holy shit thank you
For my own reference : " You can add any 2 rows together; you can multiply any row by a non - zero constant. You can interchange any 2 rows and you can add or subtract any 2 rows together."
No one here has to be sooo happy , he has done a mistake . x=-1 not 1
this is like a rubiks cube
yur my saveoure
X value have 7 enshrined of 1
🙇🏾♂️🙇🏾♂️🙇🏾♂️
why? what's the point of doing so?
This is Gauss Jordan method, not Elementary Row operation
@MariosMathTutoring
Ай бұрын
…using elementary row operations
I still dont get it wwhyyyyyy
saved me. My professor is terrible.
Thanks
jhonny sins teaching linear algebra 😂😂