10-4(x-3)<=2(x-1)
    2(2x-3)<5(x-1)
    4(3y-1)+3(2y+9)<=3y-7
    2(x-1)<3(x+4)-15
    （11-x）(10-x)>6
    10-4(x-3)<=2(x-1)
    2*(2*x-3)<5*(x-1)
    1+1>x
    -e＾（-1）＋a-0.5*a＞0
    x/5-3<=(6*x)/5+2
    (9-3*x)/-5>=0
    2*x-5<=0
    5*(3-2*x)>0
    2*(1-x)>3*(x-1)
    -5/6*x-1<=2
    2*x-5>=1+5*x
    3*x>7
    8-x<3
    1-4x+5x^2-2x^3<=0
    20k×k-10k-1≤0

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