-5y^2+80=0

Solution for -5y^2+80=0 equation:

Simplifying
-5y2 + 80 = 0

Reorder the terms:
80 + -5y2 = 0

Solving
80 + -5y2 = 0

Solving for variable 'y'.

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

Add '-80' to each side of the equation.
80 + -80 + -5y2 = 0 + -80

Combine like terms: 80 + -80 = 0
0 + -5y2 = 0 + -80
-5y2 = 0 + -80

Combine like terms: 0 + -80 = -80
-5y2 = -80

Divide each side by '-5'.
y2 = 16

Simplifying
y2 = 16

Take the square root of each side:
y = {-4, 4}