5y^2-100=0

Solution for 5y^2-100=0 equation:

Simplifying
5y2 + -100 = 0

Reorder the terms:
-100 + 5y2 = 0

Solving
-100 + 5y2 = 0

Solving for variable 'y'.

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

Add '100' to each side of the equation.
-100 + 100 + 5y2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + 5y2 = 0 + 100
5y2 = 0 + 100

Combine like terms: 0 + 100 = 100
5y2 = 100

Divide each side by '5'.
y2 = 20

Simplifying
y2 = 20

Take the square root of each side:
y = {-4.472135955, 4.472135955}