Answer
0
Work Step by Step
-7 - (-7)
Can be rewritten as -7 + 7
7 - 7 = 0
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 2 - Section 2.2 - Subtraction of Signed Numbers - Signed Numbers Drill 2 - Page 111: 15
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