Answer
3
Work Step by Step
$12+(-9)$ subtract the absolute values to solve
$12-|(-9)|=12-9=3$
Since the positive number has the largest absolute value, the result is positive.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Practice and Problem-Solving Exercises - Page 34: 20
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