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Solve for x
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Solve for x (complex solution)
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Solve for y
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\sqrt{-2x}=y
Swap sides so that all variable terms are on the left hand side.
-2x=y^{2}
Square both sides of the equation.
\frac{-2x}{-2}=\frac{y^{2}}{-2}
Divide both sides by -2.
x=\frac{y^{2}}{-2}
Dividing by -2 undoes the multiplication by -2.
x=-\frac{y^{2}}{2}
Divide y^{2} by -2.