Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 2 - Solving Linear Inequalities - 2.6 - Solving Absolute Value Inequalities - Monitoring Progress - Page 89: 3

Answer

$-5\lt w\lt 6$ The graph is shown below.

Work Step by Step

The given inequality is $\Rightarrow |2w-1|\lt 11$ Write a compound inequality. $\Rightarrow 2w-1\lt 11$ and $2w-1\gt -11$ Add $1$ to each side. $\Rightarrow 2w-1+1\lt 11+1$ and $2w-1+1\gt -11+1$ Simplify. $\Rightarrow 2w\lt 12$ and $2w\gt -10$ Divide each side by $2$. $\Rightarrow \frac{2w}{2}\lt \frac{12}{2}$ and $\frac{2w}{2}\gt \frac{-10}{2}$ Simplify. $\Rightarrow w\lt 6$ and $w\gt -5$ Hence, the solution is $-5\lt w \lt 6$.
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