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.-2x - 6y = -2 2x - y = -5
A. (-2, 1)
B. (1, -2)
C. (-1, 2)
D. (2, -1)
Answer: A
Mathematics
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+ 
= 
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