Substitution method

MR. BIGSBY'S MATH WORLD

Substitution method

12/18/2017

33 Comments

Solving Substitution on youtube channel

Khan Academy - Practice

33 Comments

Ryan

12/18/2017 12:44:47 pm

Yes im first.Take that try hards.

Ryan G

12/18/2017 12:50:12 pm

now i just have to watch the video

Ryan G

12/19/2017 05:30:39 am

This is hard or I just did something wrong I got a Decimal 7.63 for y I think.

Ryan G

12/21/2017 06:39:50 am

(2,-6)

Cing Dim

12/18/2017 05:39:40 pm

I think it's (34,6)

Hanah Hlue 3B

12/18/2017 07:13:20 pm

This would be incorrect because if you replace the variables with the numbers 34 and 6, you'd get the total of 72 not 36.

Dim

12/19/2017 05:51:06 am

This is wrong

Hanah Hlue 3B

12/18/2017 07:25:33 pm

Challenge question answer: (2, -6).
Check answer:
3(2)-5(-6)=36
6--30=36
Correct

Dim

12/19/2017 05:50:52 am

Lol! I messed up. I agree with you.

Cing Dim

12/19/2017 05:52:33 am

I did it agian and got (2,-6)

francesca

12/19/2017 05:38:31 am

thanks this helped

Ainsley

12/19/2017 05:51:13 am

this was really helpful and a good head start on math class.

i got (2, -6) for my answer. it took awhile

l e o r 1 a

12/19/2017 05:53:30 am

isn't there another way called elimination

Sam Sanchioni3b

12/19/2017 01:58:44 pm

(*´台｀*)

Sara M

12/19/2017 06:15:14 pm

The answer is (6, -2)

Joseph Kluckowski

12/20/2017 01:00:51 pm

Hi Mr. Bigsby! Thanks for this awesome video, and Merry Christmas 🎁🎄 🎅🏻🤶🏻🌨❄️☃️⛄️

JOSIe

12/20/2017 02:00:29 pm

hi! thanks for the interesting video ;0

Mya H.

12/20/2017 02:14:49 pm

This video was very helpful thxxx!😊

Colin McNamara 3B

12/20/2017 04:45:17 pm

I am pretty confused, but I understand it a little bit more thanks to this video. Thank you

Owen 3b

12/21/2017 06:13:17 am

thanks for the help didn't really understand it in class and hopefully the next method is even better.

Kat 3b

12/22/2017 01:05:30 pm

Challenge question answer: (2,-6)

Joanne Park 3B

1/2/2018 06:37:23 am

I was just scrolling through the comments, BUT, I got positive 2 and positive 6.
Gotta try again...
Never mind, I looked at other comment's steps and it is 2,-6

Alex Brent 1A

1/2/2018 02:08:47 pm

the answer (2,-6)

Abby Warner 1A

1/2/2018 05:42:45 pm

(2,-6) is the answer

krystaul

1/2/2018 08:48:50 pm

(2,-6)

josie

1/3/2018 05:17:00 am

thanks!

josie

1/3/2018 05:18:04 am

oops

Shawn

1/7/2018 04:15:13 pm

2,-6

Jaden 1A

1/8/2018 10:52:57 am

Thanks for the help

Chloe M

1/8/2018 02:10:33 pm

this was super helpful. thanks!

Andrew

1/27/2018 01:49:18 pm

2,-6

David Oh

5/31/2018 01:47:47 pm

(2,-6)

madelyn white

9/11/2018 06:15:42 am

hey