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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/(d+25)+1/(d+8) = 1/(d+71.42) .
    Question type: Equation
    Solution:Original question:
     1 ÷ d + 1 ÷ ( d + 25) + 1 ÷ ( d + 8) = 1 ÷ ( d +
3571
50
)
     Multiply both sides of the equation by: d  ,  ( d +
3571
50
)
     1( d +
3571
50
) + 1 ÷ ( d + 25) × d ( d +
3571
50
) + 1 ÷ ( d + 8) × d ( d +
3571
50
) = 1 d
    Remove a bracket on the left of the equation:：
     1 d + 1 ×
3571
50
 + 1 ÷ ( d + 25) × d ( d +
3571
50
) + 1 ÷ ( d + 8) × d ( d +
3571
50
) = 1 d
    The equation is reduced to :
     1 d +
3571
50
 + 1 ÷ ( d + 25) × d ( d +
3571
50
) + 1 ÷ ( d + 8) × d ( d +
3571
50
) = 1 d
     Multiply both sides of the equation by:( d + 25)
     1 d ( d + 25) +
3571
50
( d + 25) + 1 d ( d +
3571
50
) + 1 ÷ ( d + 8) × d ( d +
3571
50
) = 1 d ( d + 25)
    Remove a bracket on the left of the equation:
     1 d d + 1 d × 25 +
3571
50
( d + 25) + 1 d ( d +
3571
50
) + 1 = 1 d ( d + 25)
    Remove a bracket on the right of the equation:：
     1 d d + 1 d × 25 +
3571
50
( d + 25) + 1 d ( d +
3571
50
) + 1 = 1 d d + 1 d × 25
    The equation is reduced to :
     1 d d + 25 d +
3571
50
( d + 25) + 1 d ( d +
3571
50
) + 1 ÷ ( d + 8) = 1 d d + 25 d
     Multiply both sides of the equation by:( d + 8)
     1 d d ( d + 8) + 25 d ( d + 8) +
3571
50
( d + 25)( d + 8) + 1 d = 1 d d ( d + 8) + 25 d ( d + 8)
    Remove a bracket on the left of the equation:
     1 d d d + 1 d d × 8 + 25 d ( d + 8) +
3571
50
 = 1 d d ( d + 8) + 25 d ( d + 8)
    Remove a bracket on the right of the equation:：
     1 d d d + 1 d d × 8 + 25 d ( d + 8) +
3571
50
 = 1 d d d + 1 d d × 8 + 25 d ( d + 8)
    The equation is reduced to :
     1 d d d + 8 d d + 25 d ( d + 8) +
3571
50
( d + 25) = 1 d d d + 8 d d + 25 d ( d + 8)
    Remove a bracket on the left of the equation:
     1 d d d + 8 d d + 25 d d + 25 d = 1 d d d + 8 d d + 25 d ( d + 8)
    Remove a bracket on the right of the equation:：
     1 d d d + 8 d d + 25 d d + 25 d = 1 d d d + 8 d d + 25 d d + 25 d
    The equation is reduced to :
     1 d d d + 8 d d + 25 d d + 200 d = 1 d d d + 8 d d + 25 d d + 200 d
    Remove a bracket on the left of the equation:
     1 d d d + 8 d d + 25 d d + 200 d = 1 d d d + 8 d d + 25 d d + 200 d
    The equation is reduced to :
     1 d d d + 8 d d + 25 d d + 200 d = 1 d d d + 8 d d + 25 d d + 200 d
    Remove a bracket on the left of the equation:
     1 d d d + 8 d d + 25 d d + 200 d = 1 d d d + 8 d d + 25 d d + 200 d
    The equation is reduced to :
     1 d d d + 8 d d + 25 d d + 200 d = 1 d d d + 8 d d + 25 d d + 200 d
    The equation is reduced to :
     1 d d d + 8 d d + 25 d d +
19284
25
 d = 1 d d d + 8 d d + 25 d d + 200 d
    Remove a bracket on the left of the equation:
     1 d d d + 8 d d + 25 d d +
19284
25
 d = 1 d d d + 8 d d + 25 d d + 200 d
    The equation is reduced to :
     1 d d d + 8 d d + 25 d d +
19284
25
 d = 1 d d d + 8 d d + 25 d d + 200 d

    The solution of the equation:
        d1≈-100.993459 , keep 6 decimal places
        d2≈-18.893611 , keep 6 decimal places
        d3≈-3.742929 , 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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