Answer
Does not make sense.
Work Step by Step
Adding two numbers with the same sign,
the sum retains that common sign (while adding the absolute values).
So, the sum of two negative numbers must be negative.
Does not make sense.
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 1 - Section 1.5 - Addition of Real Numbers - Exercise Set - Page 64: 90
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