Solve for u
u=35
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-10\left(-\frac{7}{2}\right)=u
Multiply both sides by -\frac{7}{2}, the reciprocal of -\frac{2}{7}.
\frac{-10\left(-7\right)}{2}=u
Express -10\left(-\frac{7}{2}\right) as a single fraction.
\frac{70}{2}=u
Multiply -10 and -7 to get 70.
35=u
Divide 70 by 2 to get 35.
u=35
Swap sides so that all variable terms are on the left hand side.
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