（x-123.325）*10-1-1=1
    4x＾2-10x+9=0
    sqrt(2)x-2=2x^2
    x^2+x-1=0
    x
    （1-0.36）x=1.6
    x-0.36x=16
    （1-x）（4-x）（9-x）+32（x+5）＝0
    7+2x-2=15+x
    （4.35-4.35/1.13*0.13+0.11）/7.08=X
    （6.86-6.86/1.13*0.13+0.12）/7.08=X
    （6.81-6.81/1.13*0.13+0.17）/7.08=X
    （5.07-5.07/1.13*0.13+0.12）/7.08=X
    （7.97-7.97/1.13*0.13+0.18）/7.08=X
    18-6x=0.5x^2
    36-24x=0.5x^2
    x^1/4=-1
    2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*210/x*0.35805183739485175)^0.055)=5.4454/x
    2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*214.13/x*0.35805183739485175)^0.055)=6.036/x
    2/3*((1-1/0.055)+(3/4+1/0.055)*(1/3*225.82/x*0.35805183739485175)^0.055)=7.2358/x

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