Answer
$x=\frac{1}{2}$ or $x=3$
Work Step by Step
$-3|4x-7|+15-0=0$
$-3|4x-7|=-15$
$\frac{-3|4x-7|}{-3}=\frac{-15}{-3}$
$|4x-7|=5$
Applying absolute rule, $4x-7=5$ or $4x-7=-5$
So:
$4x-7=5$
$4x=12$
$x=3$
or
$4x-7=-5$
$4x=2$
$x=\frac{1}{2}$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Summary, Review, and Test - Test - Page 206: 17
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