Solve for x
x=\frac{4}{9}\approx 0.444444444
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81x=36
Combine x and 80x to get 81x.
x=\frac{36}{81}
Divide both sides by 81.
x=\frac{4}{9}
Reduce the fraction \frac{36}{81} to lowest terms by extracting and canceling out 9.
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