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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+2/(x+3)+3/x+6/(x+2)+2/(x+3)+1/(x+9)+3/(x+16) = 50 .
    Question type: Equation
    Solution:Original question:
     1 ÷ x + 2 ÷ ( x + 3) + 3 ÷ x + 6 ÷ ( x + 2) + 2 ÷ ( x + 3) + 1 ÷ ( x + 9) = 50
     Multiply both sides of the equation by: x
     1 + 2 ÷ ( x + 3) × x + 3 ÷ 1 × 1 + 6 ÷ ( x + 2) × x + 2 ÷ ( x + 3) = 50 x
     Multiply both sides of the equation by:( x + 3)
     1( x + 3) + 2 x + 3 ÷ 1 × 1( x + 3) + 6 ÷ ( x + 2) × x ( x + 3) = 50 x ( x + 3)
    Remove a bracket on the left of the equation:
     1 x + 1 × 3 + 2 x + 3 ÷ 1 × 1( x + 3) + 6 ÷ ( x + 2) = 50 x ( x + 3)
    Remove a bracket on the right of the equation::
     1 x + 1 × 3 + 2 x + 3 ÷ 1 × 1( x + 3) + 6 ÷ ( x + 2) = 50 x x + 50 x × 3
    The equation is reduced to :
     1 x + 3 + 2 x + 3( x + 3) + 6 ÷ ( x + 2) × x ( x + 3) + 2 = 50 x x + 150 x
    The equation is reduced to :
     5 x + 3 + 3( x + 3) + 6 ÷ ( x + 2) × x ( x + 3) + 1 ÷ ( x + 9) × x = 50 x x + 150 x
     Multiply both sides of the equation by:( x + 2)
     5 x ( x + 2) + 3( x + 2) + 3( x + 3)( x + 2) + 6 x ( x + 3) + 1 = 50 x x ( x + 2) + 150 x ( x + 2)
    Remove a bracket on the left of the equation:
     5 x x + 5 x × 2 + 3( x + 2) + 3( x + 3)( x + 2) + 6 = 50 x x ( x + 2) + 150 x ( x + 2)
    Remove a bracket on the right of the equation::
     5 x x + 5 x × 2 + 3( x + 2) + 3( x + 3)( x + 2) + 6 = 50 x x x + 50 x x × 2 + 150 x ( x + 2)
    The equation is reduced to :
     5 x x + 10 x + 3( x + 2) + 3( x + 3)( x + 2) + 6 x = 50 x x x + 100 x x + 150 x ( x + 2)
     Multiply both sides of the equation by:( x + 9)
     5 x x ( x + 9) + 10 x ( x + 9) + 3( x + 2)( x + 9) + 3( x + 3) = 50 x x x ( x + 9) + 100 x x ( x + 9) + 150 x ( x + 2)
    Remove a bracket on the left of the equation:
     5 x x x + 5 x x × 9 + 10 x ( x + 9) + 3 = 50 x x x ( x + 9) + 100 x x ( x + 9) + 150 x ( x + 2)
    Remove a bracket on the right of the equation::
     5 x x x + 5 x x × 9 + 10 x ( x + 9) + 3 = 50 x x x x + 50 x x x × 9 + 100 x
    The equation is reduced to :
     5 x x x + 45 x x + 10 x ( x + 9) + 3( x + 2) = 50 x x x x + 450 x x x + 100 x x
     Multiply both sides of the equation by:( x + 16)
     5 x x x ( x + 16) + 45 x x ( x + 16) + 10 x ( x + 9) = 50 x x x x ( x + 16) + 450 x x x ( x + 16) + 100
    Remove a bracket on the left of the equation:
     5 x x x x + 5 x x x × 16 + 45 x = 50 x x x x ( x + 16) + 450 x x x ( x + 16) + 100
    Remove a bracket on the right of the equation::
     5 x x x x + 5 x x x × 16 + 45 x = 50 x x x x x + 50 x x x x × 16
    The equation is reduced to :
     5 x x x x + 80 x x x + 45 x x = 50 x x x x x + 800 x x x x + 450
    Remove a bracket on the left of the equation:
     5 x x x x + 80 x x x + 45 x x = 50 x x x x x + 800 x x x x + 450
    Remove a bracket on the right of the equation::
     5 x x x x + 80 x x x + 45 x x = 50 x x x x x + 800 x x x x + 450

    The solution of the equation:
        x1≈-15.941331 , keep 6 decimal places
        x2≈-2.930338 , keep 6 decimal places
        x3≈-1.875577 , keep 6 decimal places
        x4≈0.087846 , keep 6 decimal places
    
    There are 4 solution(s).


解程的详细方法请参阅:《方程的解法》



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