Intermediate Algebra (6th Edition)

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

Chapter 2 - Section 2.6 - Absolute Value Equations - Exercise Set: 9


z=5 z=-5

Work Step by Step

Original Equation |z|+4=9 Take z and solve z+4=9 Subtract 4 from both sides z=5 Make z negative and solve -z+4=9 Subtract 4 from both sides -z=5 Divide both sides by -1 z=-5
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