Answer
$x=4$
Work Step by Step
$7x+3=31$
$7x+3-3=31-3$
$7x=28$
$x=28/7 = 4$
Checking,
$7*4+3 = 31$
$31 = 31$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 12 Sequences and Series - Prerequisite Skills - Page 792: 4
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