Answer
-21
Work Step by Step
To solve this problem, we first substitute in the given numbers for each variable. We then simplify using the rules of Algebra. Doing this, we find:
$$ = (7)(-4) + (7)(1) \\ = -28 +7 \\ = -21$$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 660: 14
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