((m+2 sqrt(3))/(m^(2)+sqrt(3) m+2))=((2m+2 sqrt(3))/(m^(2)+2 sqrt(3)m+2))
    （6.66+x）/（6.66-x）*（15+6.09+x）/（0.03+x/222）=20000
    x
    x=1477+x*0.0524
    （220*2*47-X）*0.9=16084
    （220*2*37-X）*0.9=16084.34
    （220*2*47-X）*0.9+8*47=16084.34
    200*X=50+(60+90)*X
    x*18=243+1458/x
    5.4×1.5x=0
    (x-1) * (e^x + 5) = 1
    (x-1) * (e^x + 0) = 1
    (x-1) * (e^x + 10) = 1
    （27.776+x）×2.95＝55.552+76.628-x
    （27.776+x）×2.75＝55.552+76.628-x
    （27.776+x）×2.55＝55.552+76.628-x
    （27.776+x）×2.35＝55.552+76.628-x
    （27.776+x）×2.15＝55.552+76.628-x
    （440*47-X）*0.9=16084.34
    x*1.05=55

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