Solve the system of equations using substitution.
A. x = -2, y = 1; x = -1, y = -2; x = 1, y = -2; x = 2, y = 1
B. x = 1, y = -2; x = 4, y = 13
C. x = -1, y = -2; x = 1, y = -2
D. x = -2, y = 1; x = 2, y = 1
Answer: A
Mathematics
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