Answer
20
Work Step by Step
We need to substitute both x and y into the expression: $8(3)-(4)$
Then, we solve by following order of operations, first multiplying and then subtracting:
$24-4=20$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 1 - Section 1.1 - Algebraic Expressions, Real Numbers, and Interval Notation - Exercise Set - Page 12: 18
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