Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 7 - Cumulative Review Exercises - Page 880: 13



Work Step by Step

Step 1. Rewrite the inequality as $-4\lt \frac{x}{3}+2\lt 4$ Step 2. Subtract 2 from all sides; we have $-6\lt \frac{x}{3}\lt 2$ Step 3. Multiply 3 to get the solution as $-18\lt x\lt 6$ or $(-18,6)$
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