Solve for y
y=81
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\frac{1}{9}y=9
Square both sides of the equation.
\frac{\frac{1}{9}y}{\frac{1}{9}}=\frac{9}{\frac{1}{9}}
Multiply both sides by 9.
y=\frac{9}{\frac{1}{9}}
Dividing by \frac{1}{9} undoes the multiplication by \frac{1}{9}.
y=81
Divide 9 by \frac{1}{9} by multiplying 9 by the reciprocal of \frac{1}{9}.
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