1.01^x=2/11
    x-0.7x=10
    x^10+2x^9-3x^8+5x^3+1=0
    x^2+3x+1=0
    -3*(3*x^2+3*x-78)^2+4*(3*x^2+3*x-78)-x+156=0
    ln(3*x)/x=13436/9064000
    ln(0.1*x)/x=13436/9064000
    ln(0.2*x)/x=13436/9064000
    ln(0.3*x)/x=13436/9064000
    -3（3x^2+3x-78)^2+4(3x^2+3x-78)-x+156=0
    x+50%x=5
    ln(2*x)/x=13436/9064000
    x-4=1
    ln(0.5*x)/x=13436/9064000
    ln(0.6*x)/x=13436/9064000
    ln(0.7*x)/x=13436/9064000
    ln(0.8*x)/x=13436/9064000
    ln(0.9*x)/x=13436/9064000
    X*（45%-7.5%）-1500-（40000+X）*5%*50%=0
    v^(2)－130v＋60^(2)<0

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