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    sqrt(m)-9=sqrt(m-9)
    x+x*0.06=18600.48
    2.234*(45-x)^0.75=x-31.5
    lnt+t=3/2
    x/lnx=2/ln2
    200-2P=40+ 2P
    arctan(3*x)-arctan(x)-arctan(4*x)=180
    arctan(3*x)-arctan(x)-arctan(4*x)=-90
    arctan(3*x)-arctan(x)-arctan(4*x)=0
    arctan(0.3*x)-arctan(x)-arctan(0.1*x)=0
    arctan(0.3*x)-arctan(x)-arctan(0.1*x)=-90
    3*74/17+y=15
    3*17/74+y=15
    (-360000-3600x )÷(181800000+180x)=0.0025
    (-360000-3600x )÷(181800000+180x)=0.0025
    (-3600-3600x )÷(18180000+180x)=0.0025
    x^3(8-6x)-1=0
    x^3(1/3-1/4x)-6=0
    arctan(0.3*x)-arctan(x)-2*arctan(0.1*x)=0
    arctan(0.3*x)-arctan(x)-2*arctan(0.1*x)=-90

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