Algebra 1: Common Core (15th Edition)

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

Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises: 35

Answer

-10, -9, -8, and -7.

Work Step by Step

We need to get the variable alone. In order to cancel out division, we use multiplication, so we multiply both sides of the inequality by 3. Thus, we obtain that $r \leq -3$. Therefore, four solutions to the inequality are -10, -9, -8, and -7.
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