144-81y^2=

Solution for 144-81y^2= equation:

Simplifying
144 + -81y2 = 0

Solving
144 + -81y2 = 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 + -81y2 = 0 + -144

Combine like terms: 144 + -144 = 0
0 + -81y2 = 0 + -144
-81y2 = 0 + -144

Combine like terms: 0 + -144 = -144
-81y2 = -144

Divide each side by '-81'.
y2 = 1.777777778

Simplifying
y2 = 1.777777778

Take the square root of each side:
y = {-1.333333333, 1.333333333}