169x^2-81y^2=

Solution for 169x^2-81y^2= equation:

Simplifying
169x2 + -81y2 = 0

Solving
169x2 + -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.
169x2 + -81y2 + 81y2 = 0 + 81y2

Combine like terms: -81y2 + 81y2 = 0
169x2 + 0 = 0 + 81y2
169x2 = 0 + 81y2
Remove the zero:
169x2 = 81y2

Divide each side by '169'.
x2 = 0.4792899408y2

Simplifying
x2 = 0.4792899408y2

Take the square root of each side:
x = {-0.692307692y, 0.692307692y}