(8x+(1.5x*3)*22)+(8*12x)=7000
    (8x+(1.5x*3)*22)+8*12x=7000
    (1.32+2*x)^2*(2.45+x)=34
    (1.32+2*x)^2*(2.45+x)=34
    x^2-40x+204＝0
    K=2606.5+104.26+0.01K+60.86+0.0002K+914.63+0.0034K+0.0529K
    (1/2)-(x-1)/3=1
    1/2-(x-1/3)=1
    1/2-x-1/3=1
    x＝12-250+165×12+1500
    x＝12-250+165×12+1500
    x＝12-250+165×12+1500
    x＝12-250+165×12+1500
    400×x-（160+8）x+1500
    400×x（160+8）x+1500
    0.15X+X=197
    125=-16X*X+105X
    x－0.08x＝253
    x-（x*0.08）＝253
    sinx×sinx=49/65

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