Question

What is the solution to the following system of linear equations, using substitution?

3x + y = −9
2x + 3y = −13
A. (−3, −2)
B. (−3, 0)
C. (2, 3)
D. (−2, −3)

Answer 1

For both equations plug in the x and y values let's say x= -2
and y = -3

Answer 2

So ..
3(-2)+(-3) = ?

and
2(-2)+3(-3) = ?

Answer 3

If you get -9 and -13 then it works and D is your wonderful answer

Answer 4

Thank you i can solve the rest on my own i just needed a refresher

Answer 5

Ok good