x/1500-x/5000<=0.1 x/340-x/1500>0.1 x/340-x/5000>0.1
    x/1500-x/5000<=0.1 x/340-x/1500<=0.1 x/340-x/5000<=0.1
    x/1500-x/5000>0.1 x/340-x/1500>0.1
    x/1500-x/5000<=0.1 x/340-x/1500>0.1
    x/340-x/5000<=0.1 x/340-x/1500<=0.1
    x/340-x/5000<=0.1
    x/340-x/1500<=0.1
    x/(220-x)>=0.1
    x/340-x/1500>0.1
    x/1500-x/5000<=0.1
    x/1500-x/5000>0.1
    3(x+2)-8 >=1-2(x-1)
    153x+103<41x
    x-5>-6/x
    (413.33-429)*(480000+a)+(430-429)*480000-(429-270)*a<0
    4000>0.0025X
    4000÷X>0.0025
    6000/15>X/4000
    15/6000>4000/X
    m^2-6m+1＜0

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