Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + y + z= 7x - y + 2z=72x + 3z=14
A. {(- 
+ 7, 
, z)}
B. {(- 
- 7, 
, z)}
C. {(- 
- 7, 2z, z)}
D. {(- 
+ 7, 2z, z)}
Answer: A
Mathematics
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