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x=420
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x≔420
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x=-112\left(-\frac{15}{4}\right)
Divide -112 by -\frac{4}{15} by multiplying -112 by the reciprocal of -\frac{4}{15}.
x=\frac{-112\left(-15\right)}{4}
Express -112\left(-\frac{15}{4}\right) as a single fraction.
x=\frac{1680}{4}
Multiply -112 and -15 to get 1680.
x=420
Divide 1680 by 4 to get 420.
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