Solve for L
L=\frac{P-2W}{2}
Solve for P
P=2\left(L+W\right)
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2L=P-2W
Subtract 2W from both sides.
\frac{2L}{2}=\frac{P-2W}{2}
Divide both sides by 2.
L=\frac{P-2W}{2}
Dividing by 2 undoes the multiplication by 2.
L=\frac{P}{2}-W
Divide P-2W by 2.
P=2L+2W
Swap sides so that all variable terms are on the left hand side.
Examples
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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