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Simplifying
16x2 + -81y2 = 0
Solving
16x2 + -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.
16x2 + -81y2 + 81y2 = 0 + 81y2
Combine like terms: -81y2 + 81y2 = 0
16x2 + 0 = 0 + 81y2
16x2 = 0 + 81y2
Remove the zero:
16x2 = 81y2
Divide each side by '16'.
x2 = 5.0625y2
Simplifying
x2 = 5.0625y2
Take the square root of each side:
x = {-2.25y, 2.25y}
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