Answer
Answers may vary. One possible answer is $x+y+z=-3$
Work Step by Step
The sum of the values of the variables is -3 ($-1+2-4$), so finding the sum was my goal in making the equation.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Section 9.1 - Solving Systems of Linear Equations in Three Variables and Problem Solving - Exercise Set - Page 641: 47
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