7500/x+30000/(x+60)=150
    7500(x+60)+30000x=150x(x+60)
    7500(x+60)+3000x=150x(x+60)
    r*r/100/14.50=0.366*50*24*(lg(r)-lg0.175)/77
    r*r/100/8.50/8.50=0.366*50*24*(lg(r)-lg0.175)/77/8.50
    r*r/100/8.50/8.50=0.366*80*24*(lg(r)-lg0.175)/77/8.50
    log(3,(2x-1))
    r*r/100/10.50/10.50=0.366*80*24*(lg(r)-lg0.175)/77/10.50
    r*r/100/10.50/10.50=0.366*50*24*(lg(r)-lg0.175)/77/10.50
    r*r/100/14.50/14.50=0.366*50*24*(lg(r)-lg0.175)/77/14.50
    X²-3X-3=0
    24x^2-28x+6=0
    mod(10,3)
    10mod3
    10 mod 3
    x-sin2x=3π/2
    x-sin2x=π/2
    x-sin2x=π/2
    y=y
    1=x

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