x^2-9y^2=

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Solution for x^2-9y^2= equation: 


Simplifying
x2 + -9y2 = 0

Solving
x2 + -9y2 = 0

Solving for variable 'x'.

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

Add '9y2' to each side of the equation.
x2 + -9y2 + 9y2 = 0 + 9y2

Combine like terms: -9y2 + 9y2 = 0
x2 + 0 = 0 + 9y2
x2 = 0 + 9y2
Remove the zero:
x2 = 9y2

Simplifying
x2 = 9y2

Take the square root of each side:
x = {-3y, 3y}

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