Question

What is the solution to the system of equations?
x = -4y
3x + 2y = 20

Answer 1

(x, y) = (8, -2)

Explanation:

Substitute:

3(-4y) + 2y = 20

-12y + 2y = 20

-10y = 20

y = -2

x = -4(-2) = 8