Answer
$s=\frac{2R-Iw}{2I}$
Work Step by Step
$I=\frac{2R}{w+2s}\\I(w+2s)=2R\\Iw+2Is=2R\\2Is=2R-Iw\\s=\frac{2R-Iw}{2I}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 6 - Cumulative Review Exercises - Page 500: 6
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