Elementary Technical Mathematics

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

Chapter 2 - Section 2.2 - Subtraction of Signed Numbers - Exercises: 54

Answer

-3

Work Step by Step

Change the signs of the numbers being subtracted, then add. $7+4-8-9+3=7+4+(-8)+(-9)+3=14+(-17)=-3$
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