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x=-1/2
2x-1/8=3/4|*8
2x-1=6
2x=7
x=7/2
2y/3 + y/4 = y+1/2|*12
8y+3y=6(y+1)
8y+3y=6y+6
5y=6
y=6/5
x+x+7=19
2x=12
x=6
3x - 1/2 - 2x - 1/5 < x + 1/10|*10
20x-5-20x-2<10x+1
-10x<8
x>-4/5
x/4=7|*4
x=28
z+1/3=-2|*3
3z+1=-6
3x=-7
x=-7/3
x/3-x/2=x+1|*6
2x-3x=6x+6
-7x=6|:(-7)
x=-6/7
x+x/2=16|*2
2x+x=32
3x=32
x=10,6
x- 9/4 - 2(3x-1) / 3 >0
x- 9/4 - (6x-2)/3>0|*12
12x-27-24x+24>0
-12x>3
x<-4