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 - Page 112: 57



Work Step by Step

Change the signs of the numbers being subtracted, then add. $8+10-20+4-5-6+1=8+10+(-20)+4+(-5)+(-6)+1=23+(-31)=-8$
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