Solve for u
u = -\frac{9}{2} = -4\frac{1}{2} = -4.5
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6u=-9-18
Subtract 18 from both sides.
6u=-27
Subtract 18 from -9 to get -27.
u=\frac{-27}{6}
Divide both sides by 6.
u=-\frac{9}{2}
Reduce the fraction \frac{-27}{6} to lowest terms by extracting and canceling out 3.
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