Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.4 - Integers: Multiplication and Division - Problem Set 1.4 - Page 27: 94

Answer

The answer is below.

Work Step by Step

The student accidentally did the following: $$-6 + (-8) \div 2 \\ 54 / 2 =27$$ First of all, the student thought that the addition symbol was a multiplication symbol. Then, they incorrectly multiplied 6 and 8 to get 54. Here is how you do it correctly: $$ = -6 + (-4) \\ -10$$ Note, it is important to divide the -8 by two before performing addition.
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.