Answer
Interval: $(a-d,\ a+d)$
Work Step by Step
$|x-a|\lt d$
$-d\lt x-a\lt d$
$-d+a\lt x-a+a\lt d+a$
$a-d\lt x\lt a+d$
Interval: $(a-d,\ a+d)$
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 1, Equations and Graphs - Section 1.8 - Solving Absolute Value Equations and Inequalities - 1.8 Exercises - Page 153: 38
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