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\frac{d}{4c}-3
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\frac{d}{4c}-3
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\frac{-\left(7c+4d\right)-\left(5c-5d\right)}{4c}
Since -\frac{7c+4d}{4c} and \frac{5c-5d}{4c} have the same denominator, subtract them by subtracting their numerators.
\frac{-7c-4d-5c+5d}{4c}
Do the multiplications in -\left(7c+4d\right)-\left(5c-5d\right).
\frac{-12c+d}{4c}
Combine like terms in -7c-4d-5c+5d.
\frac{-\left(7c+4d\right)-\left(5c-5d\right)}{4c}
Since -\frac{7c+4d}{4c} and \frac{5c-5d}{4c} have the same denominator, subtract them by subtracting their numerators.
\frac{-7c-4d-5c+5d}{4c}
Do the multiplications in -\left(7c+4d\right)-\left(5c-5d\right).
\frac{-12c+d}{4c}
Combine like terms in -7c-4d-5c+5d.
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