Solve for a
a=-21
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\frac{3}{7}a=10-19
Subtract 19 from both sides.
\frac{3}{7}a=-9
Subtract 19 from 10 to get -9.
a=-9\times \frac{7}{3}
Multiply both sides by \frac{7}{3}, the reciprocal of \frac{3}{7}.
a=\frac{-9\times 7}{3}
Express -9\times \frac{7}{3} as a single fraction.
a=\frac{-63}{3}
Multiply -9 and 7 to get -63.
a=-21
Divide -63 by 3 to get -21.
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