(10542.4m^2-1945.6m+432/m+5454.3)/(29.64m+8.4)+6*(48146.1m^2+767.96-0.7^2+11281.8m/0.7+2592*0.7/m+56243.2m-32372.9*0.7-26295.8*m-117697.6)=0
    （134014-x）/x=5.69%
    2(14509+370x)=3830+1000x
    14509+370x=3830+1000x
    14509+370x=3830+1000
    2:X=（5/6）:（2/3）
    9+9=x
    ln(x^2+4)+x/4
    e^x+3*x
    (1200-50x)x=7200
    12k∧2-35k+24=0
    12k∧2-35k+48=0
    0.25xx-x-3=0
    0.25x-x-3=0
    3.995=（（0.0219*x^1.85+129）^0.5）*x^0.84
    45576472.16*(1-x)*x=1412982.5
    1.6997x^2+0.444x+0.0026=0
    6/5:3/2=x/2
    x+1=2
    5/6x=3/4

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