Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Sections 2.1-2.4 - Integrated Review - Linear Equations and Inequalities - Page 88: 2

Answer

$(-5,\infty)$

Work Step by Step

$-4x\lt20$ Solve for x by dividing each side of the equation by -4. Dividing by a negative requires you to reverse the inequality sign. $-4x\div-4\gt20\div-4$ $x\gt-5$ This is written in interval notation as $(-5,\infty)$ where the use of ( indicates that the solution set for x approaches but does not include -5.
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