Answer
It is a solution.
Work Step by Step
We plug in the given value to see if it is a solution:
$$\mid 3(1) -7 \mid =4 \\ \mid -4 \mid =4 \\ 4=4$$
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 1, Equations and Inequalities - 1.7 Solve Absolute Value Equations and Inequalities - 1.7 Exercises - Skill Practice - Page 55: 7
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