Mathematics
         
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On line Solution of Monovariate Equation:
    Input any unary equation directly, and then click the "Next" button to obtain the solution of the equation.
    It supports equations that contain mathematical functions.
    Current location:Equations > Monovariate Equation > The history of univariate equation calculation > Answer

    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation x/20+x/30+x/42 = 3x .
    Question type: Equation
    Solution:Original question:
      x ÷ 20 + x ÷ 30 + x ÷ 42 = 3 x
     Left side of the equation =
3
28
x
    The equation is transformed into :
     
3
28
x = 3 x

    Transposition :
     
3
28
x 3 x = 0

    Combine the items on the left of the equation:
      -
81
28
x = 0

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
      - 0 =
81
28
x

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
     
81
28
x = - 0

    The coefficient of the unknown number is reduced to 1 :
      x = - 0 ÷
81
28
        = - 0 ×
28
81

    We obtained :
      x = 0
    This is the solution of the equation.



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