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: 17



Work Step by Step

Solving the system of equations using substitution, we find: $$ \frac{-9+3\cdot \frac{-z+5}{4}+z}{2}-\frac{-z+5}{4}+z=3 \\ z=5 \\ y=\frac{-5+5}{4}=0 \\ x=\frac{-9+3\cdot \:0+5}{2}=-2$$
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