Answer
$p=2q-r$
Work Step by Step
Using the properties of equality, in terms of $
p
,$ the given expression, $
q=\dfrac{p+r}{2}
,$ is equivalent to
\begin{array}{l}\require{cancel}
2q=p+r
\\\\
2q-r=p
\\\\
p=2q-r
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter R - Elementary Algebra Review - R.2 Equations, Inequalities, and Problem Solving - R.2 Exercise Set - Page 947: 35
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