Answer
$145$
Work Step by Step
We plug in the values for the variables that are given in the problem:
$9xy - 4xz + 3yz$
$= 9(7)(3) - 4(7)(2) + 3(3)(2)$
$= 9(21) - 4(14) + 3(6)$
$= 189 - 56 + 12$
$= 133 + 12$
$= 145$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 1 - Some Basic Concepts of Arithmetic and Algebra - 1.1 - Numerical and Algebraic Expressions - Problem Set 1.1 - Page 7: 42
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