2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*220/x*0.35805183739485175)^0.055)=8.719705882/x
    58.65*exp(- 0.01577*x^1.462)=2
    58.65*exp(- 0.01577*x^1.462)=15
    58.65*exp(- 0.01577*x^1.462)=20
    58.65*exp(- 0.01577*x^1.462)=30
    58.65*exp(- 0.01577*x^1.462)=5
    58.65*exp(- 0.01577*x^1.462)=10
    58.65*exp(- 0.01577*x^1.462)=15
    58.65*exp(- 0.01577*x^1.462)=20
    58.65*exp(- 0.01577*x^1.462)=30
    13.39x^2 - 5.1932x - 389.50096 = 0
    5x^2-14x+9＝0
    100*x*222.64/(x*222.64+(1-x)*0.5*335.17)=90.552
    100*x*222.64/(x*222.64+(1-x)*0.5*335.17)=90.552
    100*x*222.64/(x*222.64+(1-x)*0.5*335.17)=90.552
    x^3=1
    -484.299t^{3}+5782.238744t^{2}+7027.999944t+3.14637 = 0
    x^2=2
    x^=2
    x^2+3x+2=0

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