Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 9 - Basic Algebra - 9.2 Adding and Subtracting Signed Numbers - 9.2 Exercises - Page 638: 18



Work Step by Step

To add $-5+(-20)$, we can take the absolute value of both numbers. $|-5|=5$ $|-20|=20$ To add two negative numbers, we can add the absolute value of both numbers and then add a negative sign in front of the result. $|-5|+|-20|=5+20=25$ Therefore, $-5+(-20)=-25$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.