Answer
19
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:
$$ =2f-g \\ = (2)(6) -(-7) \\ = 12 + 7 \\ = 19$$
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 - Review Exercises - Page 697: 70
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