Solve the system of equations by substitution.
A. x = 8, y = -11.5; (8, -11.5)
B. x = 8, y = 3.5; (8, 3.5)
C. x = 3.5, y = -11.5; (3.5, -11.5)
D. x = 3.5, y = 11.5; (3.5, 11.5)
Answer: C
Mathematics
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