4x=x+21
    1.3x-x=150
    2/(x-1)=log(2,x-1)
    x*22+x*1.2*8=1
    (x+20)^(1/2)+(x+21)^(1/3)=1
    x*21+x*1.2*8=1
    (5+x)^(1/3)+(4-x)^(1/3)=3
    (x^2+9)^(1/2)+(x^2-9)^(1/2)=5+7^(1/2)
    1.77*1.1*x=4.15
    x*1.1*3.29=4.15
    x*23+x*1.2*8=1
    x*1.1*2.59=2.16
    1.01*1.1*x=2.16
    x*1.1*2.87=2.16
    X^2(X-3)=20240114
    2x²+2x=80000
    2x²+2x-80000=0
    2x²+2x-80000=0
    2x²+2x-80000=0
    2x²+2x=80000

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