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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/(1+x)+1/(3+x)+1/(6+x) = 1/x .
    Question type: Equation
    Solution:Original question:
     1 ÷ (1 + x ) + 1 ÷ (3 + x ) + 1 ÷ (6 + x ) = 1 ÷ x
     Multiply both sides of the equation by:(1 + x ) ,   x
     1 x + 1 ÷ (3 + x ) × (1 + x ) x + 1 ÷ (6 + x ) × (1 + x ) x = 1(1 + x )
    Remove a bracket on the left of the equation::
     1 x + 1 ÷ (3 + x ) × 1 x + 1 ÷ (3 + x ) × x x + 1 ÷ (6 + x ) = 1(1 + x )
    Remove a bracket on the right of the equation::
     1 x + 1 ÷ (3 + x ) × 1 x + 1 ÷ (3 + x ) × x x + 1 ÷ (6 + x ) = 1 × 1 + 1 x
    The equation is reduced to :
     1 x + 1 ÷ (3 + x ) × x + 1 ÷ (3 + x ) × x x + 1 ÷ (6 + x ) × (1 + x ) = 1 + 1 x
     Multiply both sides of the equation by:(3 + x )
     1 x (3 + x ) + 1 x + 1 x x + 1 ÷ (6 + x ) × (1 + x ) x = 1(3 + x ) + 1 x (3 + x )
    Remove a bracket on the left of the equation:
     1 x × 3 + 1 x x + 1 x + 1 x x + 1 = 1(3 + x ) + 1 x (3 + x )
    Remove a bracket on the right of the equation::
     1 x × 3 + 1 x x + 1 x + 1 x x + 1 = 1 × 3 + 1 x + 1 x (3 + x )
    The equation is reduced to :
     3 x + 1 x x + 1 x + 1 x x + 1 ÷ (6 + x ) = 3 + 1 x + 1 x (3 + x )
    The equation is reduced to :
     4 x + 1 x x + 1 x x + 1 ÷ (6 + x ) × (1 + x ) x = 3 + 1 x + 1 x (3 + x )
     Multiply both sides of the equation by:(6 + x )
     4 x (6 + x ) + 1 x x (6 + x ) + 1 x x (6 + x ) + 1 = 3(6 + x ) + 1 x (6 + x ) + 1 x (3 + x )(6 + x )
    Remove a bracket on the left of the equation:
     4 x × 6 + 4 x x + 1 x x (6 + x ) + 1 x = 3(6 + x ) + 1 x (6 + x ) + 1 x (3 + x )(6 + x )
    Remove a bracket on the right of the equation::
     4 x × 6 + 4 x x + 1 x x (6 + x ) + 1 x = 3 × 6 + 3 x + 1 x (6 + x ) + 1 x (3 + x )(6 + x )
    The equation is reduced to :
     24 x + 4 x x + 1 x x (6 + x ) + 1 x x = 18 + 3 x + 1 x (6 + x ) + 1 x (3 + x )(6 + x )
    Remove a bracket on the left of the equation:
     24 x + 4 x x + 1 x x × 6 + 1 x x = 18 + 3 x + 1 x (6 + x ) + 1 x (3 + x )(6 + x )
    Remove a bracket on the right of the equation::
     24 x + 4 x x + 1 x x × 6 + 1 x x = 18 + 3 x + 1 x × 6 + 1 x x + 1 x (3 + x )
    The equation is reduced to :
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 3 x + 6 x + 1 x x + 1 x (3 + x )(6 + x )
    The equation is reduced to :
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 9 x + 1 x x + 1 x (3 + x )(6 + x )
    Remove a bracket on the left of the equation:
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 9 x + 1 x x + 1 x (3 + x )(6 + x )
    Remove a bracket on the right of the equation::
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 9 x + 1 x x + 1 x × 3(6 + x ) + 1 x
    The equation is reduced to :
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 9 x + 1 x x + 3 x (6 + x ) + 1 x x
    Remove a bracket on the left of the equation:
     24 x + 4 x x + 6 x x + 1 x x x = 18 + 9 x + 1 x x + 3 x (6 + x ) + 1 x x

    The solution of the equation:
        x1≈-4.568850 , keep 6 decimal places
        x2≈-1.635552 , keep 6 decimal places
        x3≈1.204402 , keep 6 decimal places
    
    There are 3 solution(s).


解程的详细方法请参阅:《方程的解法》



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