3x+2=4
    3x+2=5
    276.12+491.28+357.47+234.98+18.15t^2+264.97t=0.02+942.23+536.93+164.72+6.6t^2+98.85t
    1.2714x^2-0.9336x-8.9=0
    2x^2＋x－1 = 0
    276.12×7.97+491.28×2.97-0.02×9.49-767.22×3.45=
    X-19/45X=52
    X-9X=52
    x=lnx+0.3*10^1
    276.12+491.28=0.02+6.97t^2+15.01t
    x=lnx+3*10^1
    x=lnx+3^10000
    x=lnx+3
    3.753*10^(-14)x=ln(x/(10^(10))
    （1088.97-x）/x=0.197
    （1088.97-a）/a=0.197
    -178x^2+3.84x^4-1=0
    1080x(1+x)^46=35(1+x)^46-35+1000x
    216x(1+x)^46=7(1+x)^46-7+200x(1+x)^41
    x=ln(x)

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