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 - 2.4 - Solving Multi-Step Inequalities - Exercises - Page 77: 22

Answer

All real numbers are solutions.

Work Step by Step

The given inequality is $\Rightarrow 3w-5\gt 2w+w-7$ Add like terms. $\Rightarrow 3w-5\gt 3w-7$ Add $7$ to each side. $\Rightarrow 3w-5+7\gt 3w-7+7$ Simplify. $\Rightarrow 3w+2\gt 3w$ Subtract $3w$ from each side. $\Rightarrow 3w+2-3w\gt 3w-3w$ Simplify. $\Rightarrow 2\gt 0$ The inequality is true. Hence, all real numbers are solutions.
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