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3x+5 > 4
3x > -1 /:3
x > -⅓
2(x+1) < 4x
2x+2 < 4x
2x-4x < -2
-2x < -2 /:(-2)
x > 1
1,5x+2,5>2
1,5x>2-2,5
1,5x>-0,5/:1,5
x>-0,(3)
2(x+1)<4x
2x+2<4x
2x-4x<-2
-2x<-2/:(-2)
x>1
Proszę :)
1/2(3x+5)>2
2(x+1)<4x
3x+5>4
3x>20
x=20/3
2x+2<4x
2<2x
1<x