Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = 1, y = 3, z = 1; (1, 3, 1)
B. x = 8, y = -1, z = -3; (8, -1, -3)
C. x = 9, y = -1, z = 3; (9, -1, 3)
D. x = 8, y = 1, z = 3; (8, 1, 3)
Answer: D
Mathematics
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A. 
B. 
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D. 
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÷ 8
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