Question

Please help. Solve the following system and show all of your work.
3y − 2x = 11
y + 2x = 9

Answer 1

make y the subject of the formulae for y + 2x = 9 then substitute it into the 1st equation, let me know if u have trouble.

Answer 2

How do I do that?

Answer 3

y + 2x =9
y = 9 - 2x

3(9 - 2x) -2x = 11

Answer 4

let me know if u understand and try and finish it :)

Answer 5

3(9 - 2x) -2x = 11
27 - 6x - 2x = 11
-8x = - 16
x = 2

Answer 6

is that right?

Answer 7

correct :) now solve for y

Answer 8

y = 2(2) = 9
y = 9 - 4
y = 5

Answer 9

correct :D congrates!

Answer 10

Thank you so much! (:

Answer 11

how will I check my answers?

Answer 12

Input your value for y back in the original equation to check.