Elementary Row Operations Matrices 3x3 Linear System

[@adityamangal6994]

I was struck at this for hours now, this got cleared in a few minutes, thanks a lot sir !

[@patrickmayer9218]

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]

thankyou !:)

[@nataliatrounce6401]

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!

[@lucianacantu8901]

Anyone else hating life Rn

[@Vegito-Black]

me bro i studied so hard and i got 27/100 in math😢😢😢😢😢

[@DarkPrincess_M]

Me

[@arfaansharief5365]

​@@Vegito-Blackripp

[@rydermackinnon8113]

Is that a pun

[@prabhnoorsingh7365]

Rn classes?

[@christinenillosguin906]

THIS IS THE BEST EXAMPLE SO FAR I GOT FROM KZbin! THANKYOU SIR.

[@williamlun4506]

watched so many vids on this type of question, including khan academy. THIS IS THE BEST ONE. THANK YOU SOOOOOOO MUCH

[@MariosMathTutoring]

You’re welcome William!

[@tee5798]

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

[@gavinm5416]

This is the best video I've watched on RREF. Absolutely saved me.

[@katlegolebelwane3318]

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.

[@p2p2p2p2p2p]

mario your videos saved me last semester in stats, now with your help i will pass linear algebra 🙏

[@solomonngwenya9091]

whowwww coooooooooool!!!! when I was introduced to this topic and hour ago, I was confused, but thanks for making it clear now

[@jesusjunkie631]

This was such a great help in coaching my daughter through her Algebra lesson this morning. Thank you!!

[@MariosMathTutoring]

Glad it was helpful!

[@_DutchRaptorX_]

Having a test tommorow and had a lot of problems with this certain part, thank you for this information

[@mr.savagebanana3284]

after a long semester i now can do this confidently thanks

[@lar6347]

Thank you so much for teaching this ! Before I found this video I was struggling doing ero . But now I can do it smoothly . 😭

[@alphoneskoipea]

Thank for helping those who really need to solve such problems

[@melissajohn5075]

I have a test on this next week! thx dude

[@ihavenobrain0]

I'm ur student, from India , respect u sir, thank you for the video,

[@fabihaareeba9657]

i have my semester finals tomorrow, this helped me soo much!!

[@KreaseCanFlyBitches]

You, my good sir, are THE GOAT

[@carolinabdepaula]

this video is a LIFE SAVER

[@angelphumla4783]

You saved my life thank you so much 😭😭😭😭🙌🙌🙌🙌🙌🙌🙌

[@immortalspiritualbeing7037]

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 !

[@yaseenabdalla8713]

Bless your soul you're a hero

[@cakefactoryy]

Man, this is great; helped me alot! Thank you so much!

[@MariosMathTutoring]

Glad it helped!

[@fabiangonzalez209]

great video, hoping all your videos are this helpful

[@maxbrode9304]

This helped a lot man, really appreciate it

[@alessandropierre8920]

Thank you professor, touchdown

[@tinashekawonde8243]

This is really good work thank you so much

[@emmastout2259]

beautiful explanation im proud i understood that immediately

[@PhamousBoi]

Thanks Sir, I understand it in first go.

[@thecatman9o9]

i know a master when i see one .... you are the shaolin dude of maths

[@FOyBAT]

Thank you sensei.

[@ethanstorey3485]

You could teach differential equations to a 5 year old. Awesome video sir. Thanks!

[@francissebintopscore2952]

Thanks a lot, Explained it so well.

[@ridzfatty1840]

Just wanna say thank you.🙏

[@CAROLUK]

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…..

[@MichaelPatili]

thankyou so much it was helpful to me.

[@_2qxz123]

That was fun yo watch thanks

[@masked00000]

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]

yes x y z in matrix are satisfying x y z from the original system

[@bizhanm3833]

Love ur lectures!!! Thannnkss!!!

[@nightingale_es]

Thank you so much!! I was so confused for days but now I finally figured out how to solve it :D

[@panky_pooh]

Instead of doing 3R1+R2=R1, couldnt you have just multiplied R1 by -1/2, R2 by 1/6, and R3 by 1/2?

[@jeraldthomas4381]

Thank you so much

[@jeraldthomas4381]

Love from india

[@davaughnebrown9235]

your a great teacher

[@Trex150]

The best of the best 👌

[@sarahchoe9056]

Hi! Is Gaussian Elimination and Elementary Row Operations the same thing?

[@muhdkhairulamirinum3985]

thank you sir

[@juvanasunil7378]

This video really helped!!! May Jesus bless you

[@timothytan3882]

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]

You can put the answer in either one Timothy!

[@timothytan3882]

Thank you so much!

[@gabevandenhoeven4546]

So you can choose in which row of the rows you use you put the answer?

[@danielmiracle-ux2fx]

is it possible to solve it with two equations? like example 2x +3x =6 x -- y =2

[@missgrey4698]

ty so much🤗🤗🤗 sir

[@kristineveneles2938]

thank you!!

[@Zoe-ge5id]

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]

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]

@@gingermuro6388 yes you can

[@pookieabc]

😭😇👏👏👏👏you made this so easy to understand thank you

[@afia1512]

Thanks a lot

[@nasser-tb4kl]

THANK YOU SO MUCH

[@LuckyRaj-ej2cz]

Sir y u start on last ro ? And Y u not star on any row ?

[@Muscabeid1]

Thank you ❤️

[@MariosMathTutoring]

You’re welcome Muscab!

[@kayceekpenike397]

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?

[@abdulrafay8620]

Thank you Sir. May Allah reward you.

[@MariosMathTutoring]

You’re welcome Abdul!

[@ellaangelatv7577]

I think I'm going crazyyyy after watching this LOL

[@nurulhuda3759]

Tq, it's so easy to understand 😊

[@rivashdeepnarain2836]

Brilliant

[@gmerkylecYclist]

Thank you, very helpful

[@MariosMathTutoring]

You’re welcome Kyle!

[@mariaalejandragalli9180]

thank you good video

[@MariosMathTutoring]

Glad you enjoyed it

[@creationmaster8514]

Bravo!

[@dogwithwigwamz.7320]

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."

[@thegreatresetofthehumanrac664]

Wow someone who actually knows logic.

[@MariosMathTutoring]

Glad you liked the video!

[@thejust219]

Thank you!!

[@MariosMathTutoring]

You’re welcome!

[@williamahyoung4504]

Quick questn: is the order of the first augmented matrix a 3x3? Or 3x4?

[@MariosMathTutoring]

Isaac, The dimensions are 3 x 4. Three rows by four columns.

[@williamahyoung4504]

Thank youuuu 👌

[@williamahyoung4504]

@@MariosMathTutoring have a good day/night there sir. Much appreciated

[@hypehuey6747]

My guy thank u

[@xaio-xen4433]

Does this work for things like a 2x3?

[@MariosMathTutoring]

Yes.

[@alizaidi2152]

THANKYOUUUUU

[@Oscar-vs5yw]

This is good

[@shashank_d_a]

Thanks sir

[@niinabacha5316]

in the first step, why did you call the 6 a negative 6?

[@haikal3152]

THANK YOU CIKGU BOTAK

[@josphatmbugua310]

Can you sometime do more challenging quastions

[@an2niotransitproductions813]

You can do this with any 3 equations right?

[@feriksadmadiredja765]

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]

Feriks, this other video I did may help you to understand it better: Gaussian Elimination with Back Substitution kzbin.info/www/bejne/oICmZZmDnNFqiqs

[@George-om7gf]

u just cant count bro

[@feriksadmadiredja765]

@@MariosMathTutoring thank you Mario

[@casexy3447]

Feriks Admadiredja lmao i thought the same thing. i’m so confused

[@feriksadmadiredja765]

@@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

[@jayshukpandrangi8668]

absolute goat

[@sudarshann7194]

No one here has to be sooo happy , he has done a mistake . x=-1 not 1

[@vonmuller7007]

Danke!

[@langxia8938]

nice

[@KamiK4ze]

this is like a rubiks cube

[@gizmssahinn]

In some examples we should change the raws but I didn’t understand when should we change 😭

[@EnglishWithAliAkbar]

This is Gauss Jordan method, not Elementary Row operation

[@MariosMathTutoring]

…using elementary row operations

[@daniilkononov7271]

why? what's the point of doing so?

[@ummeairen775]

Thanks

[@RaviKumar-ek4jq]

X value have 7 enshrined of 1

[@franklyoms]

You are too fast. What's the rush for

[@snope1779]

saved me. My professor is terrible.

[@betadias1665]

Why couldn't you just do R1-R3, instead of R1 + -R3

[@johnreyreyes-q7v]

yur my saveoure

[@pradeepballa2712]

jhonny sins teaching linear algebra 😂😂

[@Pixiee_Stardust]

I still dont get it wwhyyyyyy

[@johnsonpark3096]

holy shit thank you

[@pranaysai7713]

Why dont u guys use minus instead of saying negative always 😅😅

[@mostafaatif0]

You may be asking about one of two things 1)why do we multiply by -1 and then add it instead of just subtracting Technically in some cases you can't subtract or divide but you can multiply and add so you multiply by -1 and then add so it gives you the same result as subtraction. 2) you're just talking about the words itself, minus and negative each of them has a different meaning, it's that simple actually 😅 Minus is an operation Negative is a sign We may switch them and it might be okay cause we usually get it, but that doesn't make it right though

[@tharun34689]

Are you johny sins ??