Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 4 - Section 4.2 - Compound Inequalities - Exercise Set - Page 273: 60


$\dfrac{b-2c}{a} \lt x \lt \dfrac{b+2c}{a}$

Work Step by Step

Consider the inequality $-2 \lt \dfrac{ax -b }{c}\lt 2$ This can also be written as: $-2c \lt ax-b \lt 2c$ or, $b-2c \lt ax \lt b+2c$ Our result is: $\dfrac{b-2c}{a} \lt x \lt \dfrac{b+2c}{a}$
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