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drugi :
2(x+1) < 4x
2x+2 < 4x
2x-4x < -2
-2x < -2 /:(-2)
x > 1
1,5x+2,5>2
1,5x>-0,5
x>-0,(3)
2(x+1) < 4x
2x+2<4x
2x-4x<-2
-2x<-2/(-2)
x > 1