Solve for x
x=81
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\frac{9\sqrt{x}}{9}=\frac{81}{9}
Divide both sides by 9.
\sqrt{x}=\frac{81}{9}
Dividing by 9 undoes the multiplication by 9.
\sqrt{x}=9
Divide 81 by 9.
x=81
Square both sides of the equation.
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