Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 9 - Basic Algebra - Summary Exercises - Operations with Signed Numbers - Page 658: 9

Answer

12

Work Step by Step

5 - (-7) Subtraction Change subtraction to addition Negative 7 is changed to its opposite,(+7) 5 + (+7) = 12
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