-y^2+144=0

Solution for -y^2+144=0 equation:

Simplifying
-1y2 + 144 = 0

Reorder the terms:
144 + -1y2 = 0

Solving
144 + -1y2 = 0

Solving for variable 'y'.

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

Add '-144' to each side of the equation.
144 + -144 + -1y2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -1y2 = 0 + -144
-1y2 = 0 + -144

Combine like terms: 0 + -144 = -144
-1y2 = -144

Divide each side by '-1'.
y2 = 144

Simplifying
y2 = 144

Take the square root of each side:
y = {-12, 12}