4.43=x/633
    17.16=x/1733
    17.16=x/1733
    4.82%*x=4.43
    0.00482*x=4.43
    0.0482*x=4.43
    0.01078*x=17.16
    10.78%*x=17.16
    x^2-6x-1/27=0
    x=(-1/2)x²+x+9/2
    sin2x+x＝0.8
    5000/x+2=6000/(x+0.25x)
    5000/x=6000(x+25％×x)+2
    5000/x+2=6000/(x+25％)
    5000/x=6000/(x+25％)+2
    lnx+1 = 0
    lnx+1=0
    -0.6x+3=x-3
    0.8184*0.4^x=0.05
    50=a×50%+(500-a)×5%

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