Solve for x
x=60
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\frac{7}{20}x=21
Combine \frac{1}{10}x and \frac{1}{4}x to get \frac{7}{20}x.
x=21\times \frac{20}{7}
Multiply both sides by \frac{20}{7}, the reciprocal of \frac{7}{20}.
x=\frac{21\times 20}{7}
Express 21\times \frac{20}{7} as a single fraction.
x=\frac{420}{7}
Multiply 21 and 20 to get 420.
x=60
Divide 420 by 7 to get 60.
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