Answer
$c=\frac{Ad}{d-A}$
Work Step by Step
$A=\frac{cd}{c+d}\\A(c+d)=cd\\Ac+Ad=cd\\Ad=cd-Ac\\Ad=c(d-A)\\c=\frac{Ad}{d-A}$
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 9 - Cumulative Review Exercises - Page 755: 14
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