X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=17485700.6
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=4944997.78
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=4728019.1
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=17265477.92
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=4628019.1
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=17165478
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=687746.2
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=687746.2
    X/135-(49-X)/500=0.25
    X/135-(48-X)/500-1/44.7=0.25
    X/135-(47-X)/500-2/44.7=0.25
    X/135-(40-X)/500-10/44.7=0.25
    X/135-(40-X)/500=0.25
    3^x=x^9
    x^2+6x-23=0
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=687746.2
    0.493*（50+x*6.8）-0.507*（40+x*8.5）=0
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=17165077.92
    X-X/1.01*0.01-(X-X/1.01*0.01)*0.043=4448609.9
    （50/x+6.8）/（40/x+8.5） = 0.493/0.507

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