Question

Y=-2x - 6
y = x +9
Solve each system of equations using substitution or elimination.

Answer 1

x=-7/2, y=1

Explanation:

y=-2x-6

y=x+9

I'm going to use elimination.

2y=2x+9

y=-2x-6

3y=3

y=1

Enter y into one of the equations to find x.

2=2x+9

2x=-9+2

2x=-7

x=-7/2