Algebra 1: Common Core (15th Edition)

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 - Practice and Problem-Solving Exercises: 23

Answer

-11

Work Step by Step

Adding two negative numbers is like adding two positive numbers, except the answer is negative. Thus, the only difference is that the answer has a negative sign in front of it. Thus, because 2+9=11, -$2+ -9=-11.$
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