X+(X*0.09)=423.5
    X+(X*0.01)=200
    -0.6x+6=5x/3+2
    s^2-0.368*s+1.068=0
    （（√3）-2）x+3=（√3）/2
    13.8×300×x×(822-360+0.5x)=330×982×822－330×628×504
    （√3-2）x+3=√3/2
    （1+x）^2
    y=sqrt4
    188×1000×822=13.8×300×x×(360－0.5x)+330×628×320
    x-tanx
    (e^x-1)/x
    (e^x-1)/x
    x+x*0.166=1045
    x+x*0.093=1.17
    （79919-1.5X）*12/22*0.9=18928+10X
    （79919-2.5X）*12/22*0.9=18928+10X
    3x-30-1000/x²=0
    144x^4+360x^3+64x^2-290x-125=0
    x÷3+620-x=620

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