81y^2-225x^2=0

Solution for 81y^2-225x^2=0 equation:

Simplifying
81y2 + -225x2 = 0

Reorder the terms:
-225x2 + 81y2 = 0

Solving
-225x2 + 81y2 = 0

Solving for variable 'x'.

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

Add '-81y2' to each side of the equation.
-225x2 + 81y2 + -81y2 = 0 + -81y2

Combine like terms: 81y2 + -81y2 = 0
-225x2 + 0 = 0 + -81y2
-225x2 = 0 + -81y2
Remove the zero:
-225x2 = -81y2

Divide each side by '-225'.
x2 = 0.36y2

Simplifying
x2 = 0.36y2

Take the square root of each side:
x = {-0.6y, 0.6y}