4800x+192000=17884x
    4800x+192000=15780x
    X*0.03=x-1050
    4800x+192000=14728x
    4800x+192000=13676x
    4800x+192000=12624x
    4800x+192000=11572x
    4800x+192000=10520x
    （2*36000*8*x）√2=12000
    （2*36000*8*x）1/2=12000
    （2*x*3600）1/2=12000
    3^x=5x
    -11200+x-x*10%=100
    80×(100%+x%)＝90
    ((234.03-x*161.29)*239/2057+46408/4675-181.13)/161.29=((145.79-x*26.58)*239/2057+46408/4675-53.22)/26.58
    {[(x-55)/45]^2}*15.9=15.81
    {[(x-55)/45]^2}*15.8=15.71
    aeccos1.414
    2*x-4*sqrt(2)*x+13=0
    （X+5）÷（45+5）-X÷45=6%

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