# Chapter 8 - Systems of Linear Equations and Problem Solving - 8.4 Systems of Equations in Three Variables - 8.4 Exercise Set - Page 537: 17

$$z=5,\:y=0,\:x=-2$$

#### Work Step by Step

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

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.