Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.x - y + z = 1x + y + z = -1x + y - z = 9
A. (5, -5, -1)
B. (-5, 5, -1)
C. (5, -1, -5)
D. No solution
Answer: C
Mathematics
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A. (-2, -3, -5) B. no solution C. (-5, -2, -3) D. (-5, -3, -2)
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