Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
?
?
?
A. ?(-3, -2, 6, 1)
B. (-3, 2, -6, -1)
C. (3, -2, 6, 1)
D. (3, -2, 6, -1)
E. (3, -2, -6, 1)
Answer: C
Mathematics
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