Answer
{$\dfrac{4}{3},5$}
Work Step by Step
Given: $4x-9=2x+1$
or, $4x-2x=1+9$
or, $2x=10 \implies x=5$
Now, $4x-9=-(2x+1)$
or, $4x+2x=-1+9$
or, $6x=8 \implies x=\dfrac{8}{6}=\dfrac{4}{3}$
Hence, {$\dfrac{4}{3},5$}
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 4 - Section 4.3 - Equations and Inequalities Involving Absolute Value - Exercise Set - Page 283: 28
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