Solve the system of equations using substitution.
A. x = 4, y = -13; x = -6, y = -3
or (4, -13), (-6, -3)
B. x = -5, y = -4; x = -15, y = 6
or (-5, -4), (-15, 6)
C. x = -13, y = 4; x = -3, y = -6
or (-13, 4), (-3, -6)
D. x = -4, y = -5; x = 6, y = -15
or (-4, -5), (6, -15)
Answer: C
Mathematics
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