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: 42

Answer

+17

Work Step by Step

Change the sign of the number being subtracted, then add. $(+10)-(-4)-(6)-(-9)=(+10)+(+4)+(-6)+(+9)=(+23)+(-6)=+17$
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