Solve for x
x=8
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16+x=21\times \frac{8}{7}
Multiply both sides by \frac{8}{7}, the reciprocal of \frac{7}{8}.
16+x=\frac{21\times 8}{7}
Express 21\times \frac{8}{7} as a single fraction.
16+x=\frac{168}{7}
Multiply 21 and 8 to get 168.
16+x=24
Divide 168 by 7 to get 24.
x=24-16
Subtract 16 from both sides.
x=8
Subtract 16 from 24 to get 8.
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