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9 < 4- 2
6 -4x/18 + 9 -9x/18< 4
15 - 13x/18 < 4
15/18 - 13/18x < 4
-13/18x < 4 - 15/18
-13/18x < 19/6 /: (-13/18)
x < 4,38
b) 3-5x
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1,5x -10 >4,5x -2,5(x-6)
2x - 3 i 1/3 - 10 > 4,5x - 2,5x + 15
2x - 2x > 13 i 1/3 + 15
równanie sprzeczne