Answer
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
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 2 - Section 2.6 - Absolute Value Equations - Exercise Set - Page 100: 9
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