Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 1 - Review Exercises - Page 109: 61

Answer

$-7$

Work Step by Step

In this problem, when you see a positive ($+$) and a negative ($-$) sign together, then the negative ($-$) sign dominates. For this problem, we can rewrite the expression as: $7 - 5 - 13 + 4$ Now we evaluate this expression. Since we are only adding or subtracting the numbers, we add or subtract directly from left to right: $2 - 13 + 4$ = $-11 + 4$ = $-7$ $-7$ is your answer.
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