x>1.2x-56
    3.5*d^3-6d-19.2>=0
    （2-x)/2-(2x-4)/3<1
    -4x≥-3
    (2^(2*a)+2^(2*a-2)+2)/(2^(4*a-2)+2^(2*a-2)+2^(2*a)+1)>-2
    [2（x-1）]∧2-4*1*（x∧2-1）＞0
    6*(1/46.182 - 1/x) + 12*(1/x - 1/46.359) >0
    36*(1/46.182 - 1/x) + 12*(1/x - 1/46.359) >0
    36*(1/46.582 - 1/x) + 12*(1/x - 1/46.359) >0
    x^2-13x+24<0
    3∧x>5x
    5x＞6
    -1小于3-2x
    -7小于或等于x+5小于或等于7
    -5小于2x-3小于5
    x+3<2
    72x<5
    m-8＞0
    abs(x-1)>2x^2
    200/ x+200＜40

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