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(Solved): Solve the system using Gaussian elimination or Gauss-Jordan elimination.
-9x-8y-7z=-137
2x-3y+7z=44
...
Solve the system using Gaussian elimination or Gauss-Jordan elimination.
-9x-8y-7z=-137
2x-3y+7z=44
-7x-4y-9z=-119
Select one:
A. {(7,4,6)}
B. {(-7,-4,6)}
C. {(4,7,6)}
D. {(4,-7,-6)}
