912*（1+（（X-116）/116*0.5+（1880-1734）-1734*0.5））*0.4=885
    2860x^2+313546.677x-220178404＝0
    X-X*0.065-(X+1000000)*0.0003=1000000
    X-X*0.065-（X+1000000）*0.0003=1000000
    x/(0.1-x)(3-2x)(3-2X)=1.1*10^7
    x÷(0.1-x)÷(3-2x)÷(3-2x)=1.1*10^7
    x/((0.1-x)*(3-2x)*(3-2x))=1.1*10^7
    (x-105.050)*10-0.6-0.6=2
    6X÷6=222÷6
    4X+2*（X+19）=260
    4X+2*（X+19）=19
    X-(X*0.05)=2000000
    x/0.82=60.4
    x*0.82=60.4
    x*0.82+10=70.4
    4*sin(2*x)/2/x=sin(x)/x
    2*sin(x)/sin(2*x)=4
    (x-112.353)*10-1-1=2
     (31600+3500)+700*x = 800*x
     (31600+3500)+700*x = 700*x

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