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current location:Solving equations online > On line Solution of Monovariate Equation > The history of univariate equation calculation
    (20%*10+75%*y)/(10+y)=25%
    (20%*10+75%*x)/(10+x)=25%
    20%*10+75%*x/10+x=25%
    0.1*0.165*0.33+0.5*0.115*0.23+0.4*(−0.185)*(−0.37)=x
    x+e^x=0
    x^4-3*x^3+3*x+1=0
    188*x*x+640*x+840=0
    (4.8-x)* (4.8-x) +1.4*1.4=x*x
    (4.8-x)^2+1.4*1.4=x*x
    (1+r/12)^12-1
    (360/x)×(14/15)=420/(x+3)
    9/4-477/5+x=0.54
    x/1.13*0.1+x=21
    17x^2-16x+2=0
    1253.514+193=193*(1-r^11)/(1-r)
    19.2*(1-r^11)/(1-r)=19.2+114.7
    24:x=(1-20):x
    2x=1
    20x-2x²
    X=40/1.25

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