Answer
$w=\frac{P}{2}-l$
Work Step by Step
Subtract $2l$ from both sides. Divide both sides by 2.
$P-2l=2w$
$\frac{P}{2}-l=w$
$w=\frac{P}{2}-l$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.1 - Linear Equations - 1.1 Exercises - Page 85: 42
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