Answer
+15
Work Step by Step
By removing the parentheses and adding the terms, we have
$$
+6-(-9)=+6+9=+15
.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 8 - Cumulative Review - Page 318: 2
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