Answer
d=−8 or d=0
Work Step by Step
2|d+4|=8⟶ divide each side by 2
2|d+4|÷2=8÷2⟶ divide
|d+4|=4⟶ definition of absolute value
d+4=−4 or d+4=4⟶ subtract 4 from each part
d+4−4=−4−4 or d+4−4=4−4⟶ subtract
d=−8 or d=0
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 3 - Solving Inequalities - 3-7 Absolute Value Equations and Inequalities - Practice and Problem-Solving Exercises - Page 211: 24
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