Answer
$x=3$
Work Step by Step
$3x+4$=$ 13\qquad$ ...add $-4$ to each side.
$ 3x+4-4=13-4\qquad$ ...simplify.
$ 3x=9\qquad$ ...divide each side with $3$.
$x=3$
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 4 Quadratic Functions and Factoring - 4.5 Solve Quadratic Equations by Finding Square Roots - 4.5 Exercises - Mixed Review - Page 271: 53
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