Solve the system of equations using substitution.
A. x = -7, y = 48; x = -3, y = 8
or (-7, 48), (-3, 8)
B. x = 7, y = 48; x = -3, y = 8
or (7, 48), (-3, 8)
C. x = 7, y = 50; x = -3, y = 10
or (7, 50), (-3, 10)
D. x = -7, y = 48; x = 3, y = 8
or (-7, 48), (3, 8)
Answer: B
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