Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises - Page 182: 35


-3, -9, -12, -1200

Work Step by Step

Isolate the variable on one side of the inequality to find the solution. $-1\geq\frac{r}{3}\longrightarrow$ multiply each side by 3 $-1\times3\geq\frac{r}{3}\times3\longrightarrow$ multiply $-3\geq r$ -3 is the solution at the endpoint. Any other number that is less than -3 is also part of the solution set.
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