(46906-x*24.5*8.2)/(6100-x*24.5)*1.06<7.96
    x2-5x+6>0
    1/(x+2)<3
    (2x+1)/(x-3) <1
    (2x+10)/(x-3)<1
    （x+2）/(x-1)>0
    x*e^(0.1657*x)<=7.5438
    (25+x)(80000-2000x)≥25*80000
    -x*x+10x-24<0
    -x2+10x-24<0
    12x*x-19x>=-8
    12x*x-19x>=1
    12x*x>=1
    12y*y>1
    12y^2-19y+8>=0
    16x^2-8x<0
    x+arcsin(cos(x)/1.516)>41
    249(1-x)[(1-0.02)] ^164>0.015
    249(1-x)[(1-0.02)^164] >0.015
    1319(1-x)[(1-0.02)^96] >0.015

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