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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 = -0.43*(x/(x+100))-0.018*(x/(x+100))(x/(x+100)) .
    Question type: Equation
    Solution:Original question:
      - 1 = -
43
100
( x ÷ ( x + 100))
9
500
( x ÷ ( x + 100))( x ÷ ( x + 100))
    Remove a bracket on the right of the equation::
      - 1 = -
43
100
x ÷ ( x + 100)
9
500
( x ÷ ( x + 100))( x ÷ ( x + 100))
     Multiply both sides of the equation by:( x + 100)
      - 1( x + 100) = -
43
100
x
9
500
( x ÷ ( x + 100))( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the left of the equation:
      - 1 x 1 × 100 = -
43
100
x
9
500
( x ÷ ( x + 100))( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the right of the equation::
      - 1 x 1 × 100 = -
43
100
x
9
500
x ÷ ( x + 100) × ( x ÷ ( x + 100))( x + 100)
    The equation is reduced to :
      - 1 x 100 = -
43
100
x
9
500
x ÷ ( x + 100) × ( x ÷ ( x + 100))( x + 100)
     Multiply both sides of the equation by:( x + 100)
      - 1 x ( x + 100)100( x + 100) = -
43
100
x ( x + 100)
9
500
x ( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the left of the equation:
      - 1 x x 1 x × 100100( x + 100) = -
43
100
x ( x + 100)
9
500
x ( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the right of the equation::
      - 1 x x 1 x × 100100( x + 100) = -
43
100
x x
43
100
x × 100
9
500
x ( x ÷ ( x + 100))( x + 100)
    The equation is reduced to :
      - 1 x x 100 x 100( x + 100) = -
43
100
x x 43 x
9
500
x ( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the left of the equation:
      - 1 x x 100 x 100 x 100 × 100 = -
43
100
x x 43 x
9
500
x ( x ÷ ( x + 100))( x + 100)
    Remove a bracket on the right of the equation::
      - 1 x x 100 x 100 x 100 × 100 = -
43
100
x x 43 x
9
500
x x ÷ ( x + 100) × ( x + 100)
    The equation is reduced to :
      - 1 x x 100 x 100 x 10000 = -
43
100
x x 43 x
9
500
x x ÷ ( x + 100) × ( x + 100)
    The equation is reduced to :
      - 1 x x 200 x 10000 = -
43
100
x x 43 x
9
500
x x ÷ ( x + 100) × ( x + 100)
     Multiply both sides of the equation by:( x + 100)
      - 1 x x ( x + 100)200 x ( x + 100)10000( x + 100) = -
43
100
x x ( x + 100)43 x ( x + 100)
9
500
x x ( x + 100)
    Remove a bracket on the left of the equation:
      - 1 x x x 1 x x × 100200 x ( x + 100)10000 = -
43
100
x x ( x + 100)43 x ( x + 100)
9
500
x x ( x + 100)
    Remove a bracket on the right of the equation::
      - 1 x x x 1 x x × 100200 x ( x + 100)10000 = -
43
100
x x x
43
100
x x × 10043 x ( x + 100)
9
500
    The equation is reduced to :
      - 1 x x x 100 x x 200 x ( x + 100)10000( x + 100) = -
43
100
x x x 43 x x 43 x ( x + 100)
9
500
x
    Remove a bracket on the left of the equation:
      - 1 x x x 100 x x 200 x x 200 x = -
43
100
x x x 43 x x 43 x ( x + 100)
9
500
x
    Remove a bracket on the right of the equation::
      - 1 x x x 100 x x 200 x x 200 x = -
43
100
x x x 43 x x 43 x x 43 x
    The equation is reduced to :
      - 1 x x x 100 x x 200 x x 20000 x = -
43
100
x x x 43 x x 43 x x 4300 x
    Remove a bracket on the left of the equation:
      - 1 x x x 100 x x 200 x x 20000 x = -
43
100
x x x 43 x x 43 x x 4300 x
    Remove a bracket on the right of the equation::
      - 1 x x x 100 x x 200 x x 20000 x = -
43
100
x x x 43 x x 43 x x 4300 x

    The solution of the equation:
        x1≈-188.120746 , keep 6 decimal places
        x2≈-96.299544 , 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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