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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 (1/(9+12)+1/(16+12x))12 = x .
    Question type: Equation
    Solution:Original question:
     (1 ÷ (9 + 12) + 1 ÷ (16 + 12 x )) × 12 = x
    Remove a bracket on the left of the equation::
     1 ÷ (9 + 12) × 12 + 1 ÷ (16 + 12 x ) × 12 = x
    The equation is reduced to :
     12 ÷ (9 + 12) + 12 ÷ (16 + 12 x ) = x
     Multiply both sides of the equation by:(9 + 12)
     12 + 12 ÷ (16 + 12 x ) × (9 + 12) = x (9 + 12)
    Remove a bracket on the left of the equation:
     12 + 12 ÷ (16 + 12 x ) × 9 + 12 ÷ (16 + 12 x ) × 12 = x (9 + 12)
    Remove a bracket on the right of the equation::
     12 + 12 ÷ (16 + 12 x ) × 9 + 12 ÷ (16 + 12 x ) × 12 = x × 9 + x × 12
    The equation is reduced to :
     12 + 108 ÷ (16 + 12 x ) + 144 ÷ (16 + 12 x ) = x × 9 + x × 12
    The equation is reduced to :
     12 + 108 ÷ (16 + 12 x ) + 144 ÷ (16 + 12 x ) = 21 x
     Multiply both sides of the equation by:(16 + 12 x )
     12(16 + 12 x ) + 108 + 144 = 21 x (16 + 12 x )
    Remove a bracket on the left of the equation:
     12 × 16 + 12 × 12 x + 108 + 144 = 21 x (16 + 12 x )
    Remove a bracket on the right of the equation::
     12 × 16 + 12 × 12 x + 108 + 144 = 21 x × 16 + 21 x × 12 x
    The equation is reduced to :
     192 + 144 x + 108 + 144 = 336 x + 252 x x
    The equation is reduced to :
     444 + 144 x = 336 x + 252 x x

    After the equation is converted into a general formula, there is a common factor:
    ( x - 1 )
    From
        x - 1 = 0

    it is concluded that::
        x1=1

    Solutions that cannot be obtained by factorization:
        x2≈-1.761905 , keep 6 decimal places
    
    There are 2 solution(s).


解程的详细方法请参阅:《方程的解法》



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