Answer
s=$\frac{P-b}{2}$
Work Step by Step
P=2s+b
2s+b=P
2s=P-b
$\frac{2s}{2}$=$\frac{P-b}{2}$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 2 - Section 2.6 - Problem Solving in Geometry - Exercise Set - Page 181: 92
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