The augmented matrix of a system of equations has been transformed to an equivalent matrix in row-echelon form. If the system is consistent, then give the solution. If it is not, then state that it is inconsistent.
A. (1, -2)
B. (3, 1)
C. (-2, 1)
D. Inconsistent
Answer: D
Mathematics
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B. 
C. 
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D. 
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?
?
A. 
B. 
C. 
D. 
E. 
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Mathematics