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Simplifying
9x2y + -4y = 0
Solving
9x2y + -4y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4y' to each side of the equation.
9x2y + -4y + 4y = 0 + 4y
Combine like terms: -4y + 4y = 0
9x2y + 0 = 0 + 4y
9x2y = 0 + 4y
Remove the zero:
9x2y = 4y
Divide each side by '9y'.
x2 = 0.4444444444
Simplifying
x2 = 0.4444444444
Take the square root of each side:
x = {-0.666666667, 0.666666667}
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