Answer
See below.
Work Step by Step
If we substitute $x,y,z$ in all of the equations and all of them are satisfied then $(x,y,z)$ is a solution of the system of equations.
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 5 - Systems of Equations and Inequalities - Exercise Set 5.2 - Page 539: 43
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