Solve for a
a = -\frac{27}{2} = -13\frac{1}{2} = -13.5
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a=18\left(-\frac{3}{4}\right)
Multiply both sides by -\frac{3}{4}, the reciprocal of -\frac{4}{3}.
a=\frac{18\left(-3\right)}{4}
Express 18\left(-\frac{3}{4}\right) as a single fraction.
a=\frac{-54}{4}
Multiply 18 and -3 to get -54.
a=-\frac{27}{2}
Reduce the fraction \frac{-54}{4} to lowest terms by extracting and canceling out 2.
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