Algebra 1: Common Core (15th Edition)

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

Chapter 3 - Solving Inequalities - 3-1 Inequalities and Their Graphs - Lesson Check: 5

Answer

We plug the number in for the variable in the inequality.

Work Step by Step

When we plug a number in for the variable, we are able to simplify the inequality so that the only thing that is on either side of the inequality symbol is a number. If the inequality is true, the number is a solution, but if the inequality is not true (for instance, $3 \gt 4$ is not true), then the number is not a solution to the inequality.
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