Evaluate
\frac{21-7x}{2}
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\frac{21-7x}{2}
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\frac{\left(x-3\right)\times 7}{-2}
Divide x-3 by -\frac{2}{7} by multiplying x-3 by the reciprocal of -\frac{2}{7}.
\frac{7x-21}{-2}
Use the distributive property to multiply x-3 by 7.
\frac{\left(x-3\right)\times 7}{-2}
Divide x-3 by -\frac{2}{7} by multiplying x-3 by the reciprocal of -\frac{2}{7}.
\frac{7x-21}{-2}
Use the distributive property to multiply x-3 by 7.
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