Question

What is the x-value of the solution to this system of equations?
y=3x+11
x+2y=-6

Answer 1

x = -4

Explanation:

y=3x+11

x+2y= -6

2y = -x - 6

y= 3x + 11 (Multiply by -2)

2y = -x - 6

-2y = -6x - 22

0 = -7x - 28

28 = -7x

x = -4