Answer
0
Work Step by Step
Given -4.9 + 8.5 + 4.9 + (-8.5), we can use the identity property of 0 to cancel out numbers that add to zero.
Reorder:
[-4.9 + 4.9] + [8.5 + (-8.5)]
= 0 + 0
= 0
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - 1.5 Addition of Real Numbers - 1.5 Exercise Set - Page 42: 59
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