(1+x)^5+(1+x)^4+(1+x)^3+(1+x)^2 = 13073*X
     (1+x)^5+(1+x)^4+(1+x)^3+(1+x)^2 = 13073
     (1+x)^5+(1+x)^4+(1+x)^3+(1+x)^2+2048 = 13073
     24*(1+x)^5+1288*(1+x)^4+7*(1+x)^3+53*(1+x)^2+2048 = 13073
     24*（1-(1+x)^5)+1288*（1-(1+x)^4)+7*（1-(1+x)^3)+53*（1-(1+x)^2)+2048/(1-x) = 13073/(1-x)
    pet travel Osaka Fukuoka
    24*（1-(1+x)^5)+12*（1-(1+x)^4)+7*（1-(1+x)^3)+53*（1-(1+x)^2)+35/(1-x)=456/(1-x)
    24*（1-(1+x)^5)
    24*（1-(1+x^5))
    20000x+160000=150xx+2400x
    (x^3)/(1+1.2((0.14/x)^-2)) = (1.83)*10^-18
    (x^3)/(1+1.2((5/x)^-0.75)) = (1.83)*10^-18
     (x^3)/(1+1.2((0.14/x)^-0.75)) = (1.83)*10^-18
    (x^3)/(1+1.2((0.14/x)^-0.75))=(1.83)^-18
    x=x^3
    （20-x）（100+20x）=2280
    2500+35*1.5*X=2552.5
    x+（(x-42210370.66)*0.9422+42210370.66-x）-（(x-42210370.66)*0.9422+42210370.66）*0.02-（(x-42210370.66)*0.9422+42210370.66）*0.003=630626366.95
    x-（(x-42210370.66)*0.9422+42210370.66-x）-x*0.02-x*0.003=630626366.95
    x-（(x-42210370.66)*0.9422+42210370.66-x）-x*0.02-x*0.03=630626366.95

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