Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 1 - Section 1.4 - Adding Real Numbers - Exercise Set: 83



Work Step by Step

Finding the sum of -31, -9, 30 can be written as $-31+(-9)+30$. $-31+(-9)+30=-(31+9)+30=-(40)+30=-40+30=30+(-40)=-10$
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