Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 2 - Section 2.1 - Addition of Signed Numbers - Signed Numbers Drill 1 - Page 109: 18

Answer

-1

Work Step by Step

Because the signs are different, find the difference of the absolute value of (-7) and (+8) which is 8-7=1, take the sign of the larger number for -1
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