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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 x-x×56%-（x×56+x×13%）×10% = 69.99-69.99×0.36-（69.99×0.36+69.33×0.13）×10% .
    Question type: Equation
    Solution:Original question:
      x − x ×
56
100
 − ( x × 56 + x ×
13
100
) ×
10
100
 =
6999
100
 −
6999
100
 ×
9
25
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
     Left side of the equation =
11
25
 x − ( x × 56 + x ×
13
100
) ×
10
100
    The equation is transformed into :
     
11
25
 x − ( x × 56 + x ×
13
100
) ×
10
100
 =
6999
100
 −
6999
100
 ×
9
25
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
    Remove the bracket on the left of the equation:
     Left side of the equation =
11
25
 x − x × 56 ×
10
100
 − x ×
13
100
 ×
10
100
                                             =
11
25
 x − x ×
28
5
 − x ×
13
1000
                                             = -
5173
1000
 x
    The equation is transformed into :
      -
5173
1000
 x =
6999
100
 −
6999
100
 ×
9
25
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
     Right side of the equation =
6999
100
 −
62991
2500
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
                                               =
27996
625
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
    The equation is transformed into :
      -
5173
1000
 x =
27996
625
 − (
6999
100
 ×
9
25
 +
6933
100
 ×
13
100
) ×
10
100
    Remove the bracket on the right of the equation:
     Right side of the equation =
27996
625
 −
6999
100
 ×
9
25
 ×
10
100
 −
6933
100
 ×
13
100
 ×
10
100
                                               =
27996
625
 −
62991
25000
 −
90129
100000

    
        x≈-7.997810 , keep 6 decimal places    
    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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