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    7600/x+30000/(x+60)=150
    7600/x+20000/(x+10)=150
    3+x=15
    1.5x+2x=7700
    26700+X-X*10%/12*3=50000
    26700+X-X*0.025=50000
    x^3-2x+4
    x^2-4x+3
    10t^2-28t+25=0
    (x+20)²+x²-(26√2)²=0
    -x²+540x-32000
    2*x(1-x^2)=x
    x×x=15.37(1-2x)(1-2x)
    x×x=15.37(0.1-2x)(0.1-2x)
    x×x=15.37(0.1-2x)(0.1-2x)
    c×c=15.37(0.1-2c)(0.1-2c)
    13+(2x-27)6=151
    3*x^2+2*x=-8
    4x/(x^2-4)+2/(2-x)=1+1/(x+2)
    8x^2 +17x +8=0

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