Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

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 537: 10


$$ z=4,\:y=3,\:x=1$$

Work Step by Step

Solving the system of equations using substitution, we find: $$ -\left(-\left(-1+z\right)+z\right)+5\left(-1+z\right)-3z=2 \\ z=4 \\ y=-1+4 \\ y=3 \\ x=-3+4 \\ x=1$$
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