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posted by sandra Monday, July 20, 2009 at 10:10pm.

0.6x+ x ¡Ü1.4x-1

can't read your typing.

Using Encoding of GB2312, the question reads: 0.6x+ x ≤ 1.4x-1 1.6x ≤ 1.4x -1 0.2x ≤ -1 x ≤ -5

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