Solve for L
L=\frac{p-2W}{2}
Solve for W
W=\frac{p-2L}{2}
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2L+2W=p
Swap sides so that all variable terms are on the left hand side.
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.
2L+2W=p
Swap sides so that all variable terms are on the left hand side.
2W=p-2L
Subtract 2L from both sides.
\frac{2W}{2}=\frac{p-2L}{2}
Divide both sides by 2.
W=\frac{p-2L}{2}
Dividing by 2 undoes the multiplication by 2.
W=\frac{p}{2}-L
Divide p-2L by 2.
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