Answer
$3x-1=7\ $ or $\ 3x-1=-7$
Work Step by Step
Continuing on the logic laid out in the previous exercise,
$3x-1$ is 7 units away from zero (either on the positive or negative side.)
So, either $3x-1=7$ or $3x-1=-7$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.7 - Equations - Concept and Vocabulary Check - Page 105: 11
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