Answer
$$w=0,\:v=-5,\:u=3$$
Work Step by Step
Solving the system of equations using substitution, we find:
$$ -\left(8+6w-5-6w\right)-2\left(6w-5\right)-3w=7\\ w=0 \\ v=6\cdot \:0-5=-5 \\ u=8-5-6\cdot \:0=3$$
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 8 - Systems of Linear Equations and Problem Solving - 8.4 Systems of Equations in Three Variables - 8.4 Exercise Set - Page 538: 20
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