(2x-3)/(2-3x)<0
    (x-1)/(x-3)>4
    6.25x＞(0.8763x-2*1.141-1%*0.8763x)*7.2288
    (3x-4)(2x+1)>0
    (2x-1)/3>1-(4x+3)/2
    e^x≥ln(x＋e)
    e^x≥ln(x＋3)
    e^x≥lnx
    -5<3-2x
    2x^2-5x-12>=0
    2x^3-5x-12>=0
    1≤1-lnx≤2
    30a+25a+75≥1355
    2a+3≥39
    x(6-2x)^2>12
    x+10000/x≥200
    x+10000/x＞200
    30-x/8.25<6
    20-x/8.25<4
    2-m≥2

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