X+60%x5=37
    135.49+（358.21/1000）x-298*358.21/1000-x（334.21/1000+358.21*㏑（x-298）/1000）=-8.314*㏑（1/4）x/1000
    416.74+0+12.50+0.01V+18.39+0.0002V+22.38+0.0005V+0.0524V=V
    x+(60%x+5)=37
    6x3+x
    x+(60%x+5)=37
    12s^4+48s^2+12=0
    X/(5000+X)=20%
    X/(5000+X)=20%
    X/(2000+X)=8%
    X/(2000+X)=8%
    X/2000+X=8%
    abs（x（1-x））
    x/x+0.22=3/10
    x/x+0.22=0.3
    610/1235=360X/(360*(X+10%))
    x+0.6x+5 = 37
    x+60%x+5 = 37
    x+(60%x+5)=37
    x+(60%x+5)=37

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