Question

Use substitution to solve the system of equations.
x=-3y-13
2x+2y=-6
A. (–28, 5) B. (2, –28) C. (2, –5) D. (11, –8)

Answer 1

Can you solve the first equation for x?

Answer 2

Get into a form x = ?

Answer 3

As you can see the first equation is already solved for x

Answer 4

Now plug in x=-3y-13 for x in the second equation

Answer 5

ok thx

Answer 6

So then you get:
2(-3y-13)+2y=-6

Answer 7

no solve for y and plug y into the first equation to solve for x

Answer 8

yup

Answer 9

Got it?