Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - 3-4 Solving Multi-Step Inequalities - Practice and Problem-Solving Exercises - Page 190: 18



Work Step by Step

−(7c−18)−2c>0 ⟶ multiply (by -1) using the distributive property −7c+18−2c>0 ⟶ combine like terms −9c+18>0 ⟶ subtract 18 from both sides −9c+18−18>0−18 ⟶ simplify −9c>−18 ⟶ divide both sides by -9; reverse the inequality sign −9c÷−90 −(0−18)−0>0 −(−18)>0 18>0✓
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