Find the system of linear equations represented by the augmented matrix. Then use back substitution to solve. (Use variables x, y, z and if applicable.)
?
?
A. ?
??(56, 12, -6)
B. ?
??(44, 0, -6)
C. ?
??(-40, 12, 6)
D. ?
??(44, 0, -6)
E. ?
??(-40, 12, 6)
Answer: D
Mathematics
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