Use Gauss-Jordan elimination to find the solution. Write the solution as an ordered triple.x - y + z = 8x + y + z = 6x + y - z = -12

A. (2, -1, -9)
B. (-2, -1, -9)
C. (-2, -1, 9)
D. (2, -1, 9)


Answer: C

Mathematics

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