Answer
$-3$
$-2+(-1)=-3$
Work Step by Step
If we start at the number line on $-2$ and then move one unit to the left since we are adding $-1$, we come to $-3$. Thus:
$-2+(-1)=-3$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 1 - Foundations for Algebra - 1-5 Adding and Subtracting Real Numbers - Lesson Check - Page 33: 2
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