GMAT Practice Question Set #12 (Question 34-36)

Problem Solving Question #34: Algebraic Equality  
Time 0 0 : 0 0 : 0 0

If 2ab - c = 2a(b - c), which of the following must be true?


a=0 and c=0


a=1/2 and b=2


b=1 and c=0


a=1 or b=0


a=1/2 or c=0

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