22＋208－162－10－25－18－18×6％/12－120×9％/12＋W－W×6％/12≥20
    （4+x）/（x+2）≥2
    （2x-1）/（x-1）＞2
    2x>1
    x＞114514 x＜114514.1
    x＞114514
    （xx-1)(xx-4x-5)>0
    （x2-1)(x2-4x-5)>0
    (x+2)/(x^2-5x-6)>=0
    x+2/(x^2-5x-6)>=0
    x+2/(x^2-5x-6)=>0
    x+2/(x^2-5x-6)>0
    x/(x-1)>0
    （x+1）（x-2）（x-5）小于0
    0.12x＞35
    12x＞35
    x(1-2x)≤0
    -1
    4x^2>1
    4x>1

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