Solve for x
x=36
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\frac{-3\sqrt{x}}{-3}=-\frac{18}{-3}
Divide both sides by -3.
\sqrt{x}=-\frac{18}{-3}
Dividing by -3 undoes the multiplication by -3.
\sqrt{x}=6
Divide -18 by -3.
x=36
Square both sides of the equation.
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