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3X+3X≤12
6X≤12/:6
X≤2
2)1-2X>4
-2X>4+1
-2X>5/:(-2)
X< 5/2
3)1+2X<4X+5
2X-4X<5-1
-2X<4/:(-2)
X>-2
4)6-X>2X
-X-2X>6
-3X>6/:(-3)
X<-2
3x+3x≤12
6x≤12|: 6
x≤2
2) 1-2x>4
-2x>4-1
-2x>3|:(-2}
x<- 3\2
3) 1+2x<4x+5
2x-4x<5-1
-2x<4|:[-2]
x > -2
4) 6-x>2x
-x-2x>-6
-3x>-6|:[-3]
x<2
5) 2(x-3)≤4
2x-6≤4
2x≤4+6
2x≤10|:2
x≤5
6) (6-x)÷2≤7
3-x\2≤7|*2
6-x≤14
-x≤14-6
-x≤12 |*[-1]
x>_ -12
7) ½(3x+5)>2
1,5x+2,5>2
1,5x>2-2,5
1,5x> - 0,5 |:1,5
x>0,3
8)2(x+1)<4x
2x+2<4x
2x-4x<-2
-2x<-2|:(-2)
x>1
2) 1-2x>4 -2x>4-1 -2x>3|:-2 x<-3/2
3) 1+2x<4x+5 2x-4x<5-1 -2x<4|:-2 x>-2
4) 6-x>2x -x-2x>-6 -3x>-6|:-3 x<2
5) 2(x-3)≤4 2x-6≤4 2x≤4+6 2x≤10|:2 x≤5
7) ½(3x+5)>2|*2 3x+5>4 3x>4-5 3x>-1|:3 x>-1/2
8)2(x+1)<4x 2x+2<4x 2x-4x<-2 -2x<-2|:-2 x>1