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OpenStudy (anonymous):
Michael is twice as old as Sara. Seven years ago, Michael was three times as old as Sara. If x represents Sara's age now, which equation can be used to find Sara's current age? A x - 7 = 3(2 x - 7) B x - 7 = 3( x - 7) C 2 x - 7 = 3 x - 7 D 2 x - 7 = 3( x - 7)
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