If a, b, and c are consecutive positive even integers and a > b > c, which of the following could be equal to a - b + c ? Answers: A) 6 B) 2 C) 4 D) -3 E) -4
consectutive even , X , X + 2 , X + 4 where X = Even   now subtract X - (X+2) + (X+4)   doing this leaves us with X + 2   what even number can we substitute in X to yield an answer choice   4 works 4 (plug in 2 for X)
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If a, b, and c are consecutive positive even integers and a > b > c, which of the following could be equal to a - b + c ?