Solve the system of equations by using the inverse of the coefficient matrix if it exists and by the echelon method if the inverse doesn't exist. 3x - 6y = -3 3x + 4y = -23
A. (2, 5)
B. (-5, -2)
C. (5, 2)
D. (-2, 5)
Answer: B
Mathematics
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A. 
B. 
C. 
D. 
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