Answer
$Q=2A-T$
Work Step by Step
Multiply $2$ to both sides of the equation:
$2(A)=2 \cdot \dfrac{T+Q}{2}
\\2A = T+Q$
Subtract $T$ to both sides of the equation:
$2A-T = T+Q-T
\\2A-T = Q
\\Q=2A-T$
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 3 - Introduction to Graphing - 3.2 Graphing Linear Equations - 3.2 Exercise Set - Page 171: 63
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