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i mamy
6x-x-3<4x/3+4x-12/*3
i mamy
18x-3x-9<4x+12x-36
redukujemy
-x-9+36<0
-x+27<0
-x<-27/*(-1)
x>27
x nalezy (27,+nieskonczonosc)
i nanies to na wykres :)