Answer
-12
Work Step by Step
Because both numbers are negative, add the absolute value of (-5) and (-7) which is 5 + 7 =12 and put a negative sign in front : -12
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 2.1 - Addition of Signed Numbers - Signed Numbers Drill 1 - Page 109: 10
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