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 3x+7(12-x) = 61 .
    Question type: Equation
    Solution:Original question:
     3 x + 7(12 x ) = 61
    Remove the bracket on the left of the equation:
     Left side of the equation = 3 x + 7 × 127 x
                                             = 3 x + 847 x
                                             = - 4 x + 84
    The equation is transformed into :
      - 4 x + 84 = 61

    Transposition :
      - 4 x = 6184

    Combine the items on the right of the equation:
      - 4 x = - 23

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
     23 = 4 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 :
     4 x = 23

    The coefficient of the unknown number is reduced to 1 :
      x = 23 ÷ 4
        = 23 ×
1
4

    We obtained :
      x =
23
4
    This is the solution of the equation.

    Convert the result to decimal form :
      x = 5.75



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