If you're trying to solve for y
-2y = 8
Divide -2 to both sides
Cancel out the -2 on the left, Divide the -2 to the 8 on the right so
y = -4
-2y = 8
Divide -2 to both sides
Cancel out the -2 on the left, Divide the -2 to the 8 on the right so
y = -4