(12.5*x*x/(4-x*x)-3*x*x+2)/(25*x/(4-x*x)-5*x)> ((15+x*x/2)*x*x*x/(4-x*x)+1.5*x*(1-x*x)/(4-x*x)+2*x/(4-x*x)+x*x+1)/((-5*x*x*(1-5/(4-x*x)))/(4-x*x))
    4<(y+1)/2<5
    5<(y+1)/2<4
    (x+15)/2>x-3
    (3y-2)/2+1>(y-2)/2
    (x-2)/3-x<-2
    2x-(1+3x)/2<1
    x-4<1.5(2x-1)
    5x+2>3(x-1)
    5x+2<3(x-1)
    5x+6(30-x)<162
    8x+3(30-x)<190
    (x-3)/2
    0.5x-(x-1)/3>1
    2x<3(x-2)+5
    4x-2<3x-2
    3x+2>2x-2
    0.6[30m+40(10-m)<200
    0.6[30+40(10-m)<200
    5m+24(10-m)<200

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