Answer
No solution
Work Step by Step
A: $5y-7z=14$
B: $2x+y+4z=10$
C: $2x+6y-3z=30$
A+B
$2x+y+4z+(5y-7z)=10+14$
$2x+6y-3z=24$
We have no solution as $2x+6y-3z$ is listed as having two different solutions--24 and 30.
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 637: 10
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