15y^2-240=0

Solution for 15y^2-240=0 equation:

Simplifying
15y2 + -240 = 0

Reorder the terms:
-240 + 15y2 = 0

Solving
-240 + 15y2 = 0

Solving for variable 'y'.

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

Add '240' to each side of the equation.
-240 + 240 + 15y2 = 0 + 240

Combine like terms: -240 + 240 = 0
0 + 15y2 = 0 + 240
15y2 = 0 + 240

Combine like terms: 0 + 240 = 240
15y2 = 240

Divide each side by '15'.
y2 = 16

Simplifying
y2 = 16

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