Solve the system of equations using Cramer's Rule if it is applicable. If Cramer's Rule is not applicable, say so.
A. x = - 
, y = 
; 
B. x = 
, y = 
; 
C. not applicable
D. x = - 68, y = 3; 
Answer: A
Mathematics
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B. 
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C. 
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D. 
= - 8?7 cos ? + ?8 sin ?
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