20-9y^2=0

Solution for 20-9y^2=0 equation:

Simplifying
20 + -9y2 = 0

Solving
20 + -9y2 = 0

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + -9y2 = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -9y2 = 0 + -20
-9y2 = 0 + -20

Combine like terms: 0 + -20 = -20
-9y2 = -20

Divide each side by '-9'.
y2 = 2.222222222

Simplifying
y2 = 2.222222222

Take the square root of each side:
y = {-1.490711985, 1.490711985}