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Simplifying
5(x2 + -9y2) = 0
(x2 * 5 + -9y2 * 5) = 0
(5x2 + -45y2) = 0
Solving
5x2 + -45y2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '45y2' to each side of the equation.
5x2 + -45y2 + 45y2 = 0 + 45y2
Combine like terms: -45y2 + 45y2 = 0
5x2 + 0 = 0 + 45y2
5x2 = 0 + 45y2
Remove the zero:
5x2 = 45y2
Divide each side by '5'.
x2 = 9y2
Simplifying
x2 = 9y2
Take the square root of each side:
x = {-3y, 3y}
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