x+(60%x+5)=37
    x+(60%x+5)=37
    x+(60%x+5)=37
    20-x＝0.7x∧（1.13）
    1310x－0.5x∧2＝92867.82
    1290x－0.5x∧2＝92867.82
    cosx2
    1300x－0.5x∧2＝92867.82
    3x(3x-16)(x-1)^2+6x(x-1)+1=0
    3x(3x-16)(x-1)^2+6x(x-1)+1=0
    28345200－10902x＝2024980000
    0.01=0.402×（1.782+0.2×x÷0.6）×（x+0.0011）^1.5
    4x-6x=20
    4x-6x=20
    4x-6x=20
    （1+i）^7=2.28
    20+0.3x=（1000+x-600）*50%
    20+0.3x=（1000+x-600）*50%
    （1+i）^7=2.28
    i^7=1.28

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