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SAT I 一日一问:2014年2月19日

2014-02-19 10:00
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The correct answer is D

Explanation

The statement given in words translates into the equation x+2x=y+2y+5. This simplifies to 3x=3y+5. Then 3x-3y=5, and so 3 (x -y) =5.

It follows that x -y = (5 / 3).

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