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3-1/2x≤7
-1/2x≤4
x≥-8
½(3x+5)>2
1,5x+2,5>2
1,5x>-0,5
x>-1/3
2(x+1)<4x
2x+2<4x
2<2x
x>1
3-0,5x≤7
-0,5x≤7-3
-0,5x≤4 :(-0,5)
x≥-8
½(3x+5)>2
0,5x+2,5>2
0,5x>2-2,5
0,5x>-0,5 :(-0,5)
x<-1
2(x+1)<4x
2x+2<4x
2<4x-2x
2<2x :2
1<x
6-x≤14 |-6
-x≤8
x≥8
½(3x+5)>2 |*2
3x+5>4 |-5
3x>-1
x>-jedna trzecia
2(x+1)<4x
2x+2<4x
2x-4x<-2
-2x<-2
x>1