2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*226.72/x*0.35805183739485175)^0.055)=8.345294118/x
    2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*229.51/x*0.35805183739485175)^0.055)=8.474019608/x
    2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*240.1/x*0.35805183739485175)^0.055)=8.825294118/x
    sin(x)+0.94*cos(x)=1
    20/111-.09+X/156=0.00285(65+X)
    （x+6857.52+4554.72）*0.2*0.25=612.6
    xx－36x+81=0
    2x^3+4x^2+1=4
    3x^2+14x-18=0
    x*e^x-3
    (x^3-14x^2+8x+32)/(x-2)=
    t^3-14t^2+8t+32=0
    x^3+14x^2+8x+32=0
    x^2-e^x-4*x
    x^3-14x^2+8x+32=0
    ((sqrt(2+x)-sqrt(x))/(sqrt(1+x)-sqrt(x)))=1.7106127
    ((sqrt(2-x)-sqrt(x))/(sqrt(1-x)-sqrt(x)))=1.7106127
    ((sqrt(2-x)-sqrt(x))/(sqrt(1-x)-sqrt(x)))=1.706127
    18%xX+13%x(1-X)=16%
    (1-x)(0.85*49x-36+36x)=36-36x

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