Solve the system of equations using substitution.

A. x = 9, y = 94; x = 16, y = 269
or (9, 94), (16, 269)
B. x = 3, y = 4; x = -3, y = 4
or (3, 4), (-3, 4)
C. x = 4, y = -3; x = 3, y = 4; x = -3, y = 4; x = -4, y = -3
or (4, -3), (3, 4), (-3, 4), (-4, -3)
D. x = 4, y = -3; x = -4, y = -3
or (4, -3), (-4, -3)


Answer: C

Mathematics

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