Solve for c
c=4\left(L-d\right)
Solve for L
L=\frac{c}{4}+d
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L=\frac{1}{4}c+d
Divide each term of c+4d by 4 to get \frac{1}{4}c+d.
\frac{1}{4}c+d=L
Swap sides so that all variable terms are on the left hand side.
\frac{1}{4}c=L-d
Subtract d from both sides.
\frac{\frac{1}{4}c}{\frac{1}{4}}=\frac{L-d}{\frac{1}{4}}
Multiply both sides by 4.
c=\frac{L-d}{\frac{1}{4}}
Dividing by \frac{1}{4} undoes the multiplication by \frac{1}{4}.
c=4L-4d
Divide L-d by \frac{1}{4} by multiplying L-d by the reciprocal of \frac{1}{4}.
L=\frac{1}{4}c+d
Divide each term of c+4d by 4 to get \frac{1}{4}c+d.
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