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x < 0,25
6,5 - 9x > 0,5x + 0,5
6 > 9,5x
x< 0,63
0,5x > 0,2x + 0,5
0,3x > 0,5
x > 10/6
0,2x + 0,4 < 4,4 - x
1,2x < 4
x < 4/(12/10)
x <40/12