{x+2y=-2
{y=-8+3x
x+2(-8+3x)=-2
x-16+6x=-2
7x=14
x=2
y=-8+6 y=-2
x+2y=-2
3x-y=8
x=-2-2y
3(-2-2y)-y=8
-6-6y-y=8
-7y=8+8
-7y=14
y=-2
x=-2-2*(-2)
x=-2+4
{x+2y=-2
{y=-8+3x
x+2(-8+3x)=-2
x-16+6x=-2
7x=14
x=2
y=-8+6 y=-2
x+2y=-2
3x-y=8
x=-2-2y
3(-2-2y)-y=8
-6-6y-y=8
-7y=8+8
-7y=14
y=-2
x=-2-2y
x=-2-2*(-2)
x=-2+4
x=2