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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/d+1/(2+d) = 1/(1+d) .
    Question type: Equation
    Solution:Original question:
     1 ÷ d + 1 ÷ (2 + d ) = 1 ÷ (1 + d )
     Multiply both sides of the equation by: d  ,  (1 + d )
     1(1 + d ) + 1 ÷ (2 + d ) × d (1 + d ) = 1 d
    Remove a bracket on the left of the equation::
     1 × 1 + 1 d + 1 ÷ (2 + d ) × d (1 + d ) = 1 d
    The equation is reduced to :
     1 + 1 d + 1 ÷ (2 + d ) × d (1 + d ) = 1 d
     Multiply both sides of the equation by:(2 + d )
     1(2 + d ) + 1 d (2 + d ) + 1 d (1 + d ) = 1 d (2 + d )
    Remove a bracket on the left of the equation:
     1 × 2 + 1 d + 1 d (2 + d ) + 1 d (1 + d ) = 1 d (2 + d )
    Remove a bracket on the right of the equation::
     1 × 2 + 1 d + 1 d (2 + d ) + 1 d (1 + d ) = 1 d × 2 + 1 d d
    The equation is reduced to :
     2 + 1 d + 1 d (2 + d ) + 1 d (1 + d ) = 2 d + 1 d d
    Remove a bracket on the left of the equation:
     2 + 1 d + 1 d × 2 + 1 d d + 1 d (1 + d ) = 2 d + 1 d d
    The equation is reduced to :
     2 + 1 d + 2 d + 1 d d + 1 d (1 + d ) = 2 d + 1 d d
    The equation is reduced to :
     2 + 3 d + 1 d d + 1 d (1 + d ) = 2 d + 1 d d
    Remove a bracket on the left of the equation:
     2 + 3 d + 1 d d + 1 d × 1 + 1 d d = 2 d + 1 d d
    The equation is reduced to :
     2 + 3 d + 1 d d + 1 d + 1 d d = 2 d + 1 d d
    The equation is reduced to :
     2 + 4 d + 1 d d + 1 d d = 2 d + 1 d d
    
    There are 0 solution(s).


解程的详细方法请参阅:《方程的解法》



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