-2=-2y^2

Solution for -2=-2y^2 equation:

Simplifying
-2 = -2y2

Solving
-2 = -2y2

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '2y2' to each side of the equation.
-2 + 2y2 = -2y2 + 2y2

Combine like terms: -2y2 + 2y2 = 0
-2 + 2y2 = 0

Add '2' to each side of the equation.
-2 + 2 + 2y2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 2y2 = 0 + 2
2y2 = 0 + 2

Combine like terms: 0 + 2 = 2
2y2 = 2

Divide each side by '2'.
y2 = 1

Simplifying
y2 = 1

Take the square root of each side:
y = {-1, 1}