Solve for x
x=5
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x+13=8\times \frac{9}{4}
Multiply both sides by \frac{9}{4}, the reciprocal of \frac{4}{9}.
x+13=\frac{8\times 9}{4}
Express 8\times \frac{9}{4} as a single fraction.
x+13=\frac{72}{4}
Multiply 8 and 9 to get 72.
x+13=18
Divide 72 by 4 to get 18.
x=18-13
Subtract 13 from both sides.
x=5
Subtract 13 from 18 to get 5.
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