Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Entry-Level Assessment: 8

Answer

I. x=+13, -13

Work Step by Step

The variable of the equation |x|-7=6 is a absolute value. We first plus 7 on both sides to get |x|=13. Then, since it's absolute value, which mean the equation can be transform into x=13 or x=-13. Then we get the solution for this problem.
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