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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 2/x+1/(x+10)+1/(20+x) = 1/(x+6.6333333) .
    Question type: Equation
    Solution:Original question:
     2 ÷ x + 1 ÷ ( x + 10) + 1 ÷ (20 + x ) = 1 ÷ ( x +
66333333
10000000
)
     Multiply both sides of the equation by: x  ,  ( x +
66333333
10000000
)
     2( x +
66333333
10000000
) + 1 ÷ ( x + 10) × x ( x +
66333333
10000000
) + 1 ÷ (20 + x ) × x ( x +
66333333
10000000
) = 1 x
    Remove a bracket on the left of the equation:：
     2 x + 2 ×
66333333
10000000
 + 1 ÷ ( x + 10) × x ( x +
66333333
10000000
) + 1 ÷ (20 + x ) × x ( x +
66333333
10000000
) = 1 x
    The equation is reduced to :
     2 x +
66333333
5000000
 + 1 ÷ ( x + 10) × x ( x +
66333333
10000000
) + 1 ÷ (20 + x ) × x ( x +
66333333
10000000
) = 1 x
     Multiply both sides of the equation by:( x + 10)
     2 x ( x + 10) +
66333333
5000000
( x + 10) + 1 x ( x +
66333333
10000000
) + 1 ÷ (20 + x ) × x ( x +
66333333
10000000
) = 1 x ( x + 10)
    Remove a bracket on the left of the equation:
     2 x x + 2 x × 10 +
66333333
5000000
( x + 10) + 1 x ( x +
66333333
10000000
) + 1 = 1 x ( x + 10)
    Remove a bracket on the right of the equation:：
     2 x x + 2 x × 10 +
66333333
5000000
( x + 10) + 1 x ( x +
66333333
10000000
) + 1 = 1 x x + 1 x × 10
    The equation is reduced to :
     2 x x + 20 x +
66333333
5000000
( x + 10) + 1 x ( x +
66333333
10000000
) + 1 ÷ (20 + x ) = 1 x x + 10 x
     Multiply both sides of the equation by:(20 + x )
     2 x x (20 + x ) + 20 x (20 + x ) +
66333333
5000000
( x + 10)(20 + x ) + 1 x = 1 x x (20 + x ) + 10 x (20 + x )
    Remove a bracket on the left of the equation:
     2 x x × 20 + 2 x x x + 20 x (20 + x ) +
66333333
5000000
 = 1 x x (20 + x ) + 10 x (20 + x )
    Remove a bracket on the right of the equation:：
     2 x x × 20 + 2 x x x + 20 x (20 + x ) +
66333333
5000000
 = 1 x x × 20 + 1 x x x + 10 x (20 + x )
    The equation is reduced to :
     40 x x + 2 x x x + 20 x (20 + x ) +
66333333
5000000
( x + 10) = 20 x x + 1 x x x + 10 x (20 + x )
    Remove a bracket on the left of the equation:
     40 x x + 2 x x x + 20 x × 20 + 20 x = 20 x x + 1 x x x + 10 x (20 + x )
    Remove a bracket on the right of the equation:：
     40 x x + 2 x x x + 20 x × 20 + 20 x = 20 x x + 1 x x x + 10 x × 20 + 10 x
    The equation is reduced to :
     40 x x + 2 x x x + 400 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    Remove a bracket on the left of the equation:
     40 x x + 2 x x x + 400 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    The equation is reduced to :
     40 x x + 2 x x x + 400 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    Remove a bracket on the left of the equation:
     40 x x + 2 x x x + 400 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    The equation is reduced to :
     40 x x + 2 x x x + 400 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    The equation is reduced to :
     40 x x + 2 x x x +
166333333
250000
 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    Remove a bracket on the left of the equation:
     40 x x + 2 x x x +
166333333
250000
 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x
    The equation is reduced to :
     40 x x + 2 x x x +
166333333
250000
 x + 20 x x = 20 x x + 1 x x x + 200 x + 10 x x

    The solution of the equation:
        x1≈-15.184368 , keep 6 decimal places
        x2≈-6.633333 , 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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