The augmented matrix is in row-echelon form and represents a system of linear equations. Solve the system using backward substitution.
Write the solution as an ordered pair, if possible.
A. (2, 15)
B. No solution
C. (15, 2)
D. (14, - 2)
Answer: C
Mathematics
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A. 144 B. 48 C. 18 D. 288
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A. 
B. 
C. 
D. 
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