Answer
$M=\dfrac{P-C}{C}$
Work Step by Step
Subtract by $C$ to both sides:
$P-C=C+MC-C
\\P-C=MC$
Divide by $C$ on both sides:
$\dfrac{P-C}{C}=\dfrac{MC}{C}
\\\dfrac{P-C}{C}=M
\\M=\dfrac{P-C}{C}$
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 1 - Section 1.5 - Problem Solving and Using Formulas - Exercise Set - Page 68: 56
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