=121x^2-225y^2

Solution for =121x^2-225y^2 equation:

Simplifying
0 = 121x2 + -225y2

Solving
0 = 121x2 + -225y2

Solving for variable 'x'.

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

Add '-121x2' to each side of the equation.
0 + -121x2 = 121x2 + -121x2 + -225y2
Remove the zero:
-121x2 = 121x2 + -121x2 + -225y2

Combine like terms: 121x2 + -121x2 = 0
-121x2 = 0 + -225y2
-121x2 = -225y2

Divide each side by '-121'.
x2 = 1.859504132y2

Simplifying
x2 = 1.859504132y2

Take the square root of each side:
x = {-1.363636364y, 1.363636364y}