6（2/3x+1）>2x-5
    4x+6>2x-5
    x^3(1-2*x^4)*0.36<0.25*x^2+0.16*x+0.25
    8X+18≥12+12X
    3X-3＜7X-3
    4x+6>2x-5
    4x+11>2x
    -3<6-5/3x<4
    2-3x>=0
    3x+2>0
    2x+4+9>-3
    2(x+2)>=0
    3x-4<=5
    x-1<3x
    2x-2
    9x>7x-6
    -3x≥-9
    2*x*e^(-x^2)<1
    （x+1）/2-（2x-1）＞2
    2x+2-(2x-6)>2x-6-16

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