Answer:
x=-1189/36, y=242/9. (-1189/36, 242/9).
Step-by-step explanation:
-8x-16y=-166
8x+7y=-76
----------------
-9y=-242
9y=242
y=242/9
8x+7(242/9)=-76
8x=-76-1694/9
8x=-2378/9
x=(-2378/9)/8
x=-1189/36
