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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/(x-1)+2/(x-2) = 3/(3+x) .
    Question type: Equation
    Solution:Original question:
     1 ÷ ( x − 1) + 2 ÷ ( x − 2) = 3 ÷ (3 + x )
     Multiply both sides of the equation by:( x − 1) ,  (3 + x )
     1(3 + x ) + 2 ÷ ( x − 2) × ( x − 1)(3 + x ) = 3( x − 1)
    Remove a bracket on the left of the equation::
     1 × 3 + 1 x + 2 ÷ ( x − 2) × ( x − 1)(3 + x ) = 3( x − 1)
    Remove a bracket on the right of the equation::
     1 × 3 + 1 x + 2 ÷ ( x − 2) × ( x − 1)(3 + x ) = 3 x − 3 × 1
    The equation is reduced to :
     3 + 1 x + 2 ÷ ( x − 2) × ( x − 1)(3 + x ) = 3 x − 3
     Multiply both sides of the equation by:( x − 2)
     3( x − 2) + 1 x ( x − 2) + 2( x − 1)(3 + x ) = 3 x ( x − 2) − 3( x − 2)
    Remove a bracket on the left of the equation:
     3 x − 3 × 2 + 1 x ( x − 2) + 2( x − 1)(3 + x ) = 3 x ( x − 2) − 3( x − 2)
    Remove a bracket on the right of the equation::
     3 x − 3 × 2 + 1 x ( x − 2) + 2( x − 1)(3 + x ) = 3 x x − 3 x × 2 − 3( x − 2)
    The equation is reduced to :
     3 x − 6 + 1 x ( x − 2) + 2( x − 1)(3 + x ) = 3 x x − 6 x − 3( x − 2)
    Remove a bracket on the left of the equation:
     3 x − 6 + 1 x x − 1 x × 2 + 2( x − 1)(3 + x ) = 3 x x − 6 x − 3( x − 2)
    Remove a bracket on the right of the equation::
     3 x − 6 + 1 x x − 1 x × 2 + 2( x − 1)(3 + x ) = 3 x x − 6 x − 3 x + 3 × 2
    The equation is reduced to :
     3 x − 6 + 1 x x − 2 x + 2( x − 1)(3 + x ) = 3 x x − 6 x − 3 x + 6
    The equation is reduced to :
     1 x − 6 + 1 x x + 2( x − 1)(3 + x ) = 3 x x − 9 x + 6
    Remove a bracket on the left of the equation:
     1 x − 6 + 1 x x + 2 x (3 + x ) − 2 × 1(3 + x ) = 3 x x − 9 x + 6
    The equation is reduced to :
     1 x − 6 + 1 x x + 2 x (3 + x ) − 2(3 + x ) = 3 x x − 9 x + 6
    Remove a bracket on the left of the equation:
     1 x − 6 + 1 x x + 2 x × 3 + 2 x x = 3 x x − 9 x + 6
    The equation is reduced to :
     1 x − 6 + 1 x x + 6 x + 2 x x − 2 = 3 x x − 9 x + 6
    The equation is reduced to :
     7 x − 6 + 1 x x + 2 x x − 2(3 + x ) = 3 x x − 9 x + 6
    Remove a bracket on the left of the equation:
     7 x − 6 + 1 x x + 2 x x − 2 × 3 − 2 = 3 x x − 9 x + 6
    The equation is reduced to :
     7 x − 6 + 1 x x + 2 x x − 6 − 2 x = 3 x x − 9 x + 6
    The equation is reduced to :
     5 x − 12 + 1 x x + 2 x x = 3 x x − 9 x + 6

    
        x1=
9
7
    
    There are 1 solution(s).


解一元一次方程的详细方法请参阅:《一元一次方程的解法》



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