2.2099/（5.9375-1.1124）+0.7304/(3.1042-1.1124)+0.4789/(1.2292-1.1124)+0.0029/(1-1.1124)=x+1
    1.444/（5.9375-x）+0.4774/(3.1042-x)+0.3150/(1.2292-x)+0.3468/(1-x)=0.15
    460*458/459
    145*92/29
    145*929292/292929-460*458/459
    17/9*2204/17
    7/18*27/28
    1/4+5/7
    5/6-4/9
    （2√3+2）／√3*2
    490/34
    x+1=log（0.6733/0.0031*0.5957/0.0050）/log（2.5696）
    2.625*0.3236/（2.625-1.34）+2.361*0.6733/（2.361-1.34）+0.0031*1/（1-1.34）=x+1
    2.625*0.3236/（2.625-1.343641）+2.361*0.6733/（2.361-1.343641）+0.0031*1/（1-1.343641）=x+1
    2.625*0.1726/（2.625-x）+0.3625*2.361/（2.361-x）+0.3025*1/（1-x）+0.5556*0.1625/（0.5556-x）=0.2
    2.625*0.1726/（2.625-x）=0.2
    1/2*x-3/2*1/x=0
    2t/(t+1)
    2t/t+1
    2/x－1＝2（2/x－1－6）

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