Algebra 1

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

Chapter 3 - Solving Inequalities - Chapter Review - 3-7 Absolute Value Equations and Inequalities: 51

Answer

$r = 1$ or $r = -5$

Work Step by Step

$ 4 + abs(r+2) = 7$ $ 4 + abs(r+2) -4 = 7-4$ $abs (r + 2 ) = 3$ $r + 2 = 3$ or $r + 2 = -3$ $r + 2 = 3$ $r + 2 -2 = 3 -2$ $r = 1$ $r + 2 = -3$ $r+2 -2 = -3 -2 $ $r = -5$
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