a, b, and c are integers such that ab + c = 7, ac + b = 5, and a + b + c = 6. Wh...【小站备考】

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a, b, and c are integers such that ab + c = 7, ac + b = 5, and a + b + c = 6. What is the value of abc ?

A.2

B.6

C.9

D.12

E.18

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