Answer
$x=2A-y$
Work Step by Step
We solve for $x$:
$A=\displaystyle \frac{x+y}{2}$
$2A=x+y$
$x=2A-y$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter P, Prerequisites - Chapter P Review - Exercises - Page 77: 125
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