Solve for d
d=4
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d=-\frac{1}{5}\left(-20\right)
Multiply both sides by -20.
d=\frac{-\left(-20\right)}{5}
Express -\frac{1}{5}\left(-20\right) as a single fraction.
d=\frac{20}{5}
Multiply -1 and -20 to get 20.
d=4
Divide 20 by 5 to get 4.
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