Answer:
-2
Step-by-step explanation:
2x-y=-8-1equation
2x=-8+y
x=-8+y -2equation
2
then, taking 1st equation;
2x-y=-8
2(-8+y/2)-y=-8
-16+2y-y=-8
4
-16+2y-4y=-8
-16-2y=-8*4
-2y=-32+16
y=-16/-2
y=4
for x
x=-8+y
x=-8+4
x=-4
x=-2
