Solve using Cramer's rule. 4x - 5y - 7z = -49-6x + 4y + 6z = 24-2x - 4y + 7z = -20
A. (9, 4, 9)
B. (6, -9, -4)
C. (7, 7, 4)
D. (6, 9, 4)
Answer: D
Mathematics
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A. 
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, 
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