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    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 1/2(2/5(5/9(9/8(1-x)-1-x)-1-x)-1-x)-1-x = 1/3(3/4(4/6(6/10(1-x)-x)-x)-x)-x .
    Question type: Equation
    Solution:Original question:
     1 ÷ 2 × (2 ÷ 5 × (5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )1 x )1 x = 1 ÷ 3 × (3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x ) x ) x
     Left side of the equation =
1
2
(2 ÷ 5 × (5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )1 x )1 x
    The equation is transformed into :
     
1
2
(2 ÷ 5 × (5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )1 x )1 x = 1 ÷ 3 × (3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x ) x ) x
    Remove the bracket on the left of the equation:
     Left side of the equation =
1
2
× 2 ÷ 5 × (5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )
1
2
× 1
1
2
x 1 x
                                             =
1
5
(5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )
1
2
1
2
x 1 x
                                             =
1
5
(5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )1 x )
3
2
3
2
x
                                             =
1
5
× 5 ÷ 9 × (9 ÷ 8 × (1 x )1 x )
1
5
× 1
1
5
x
3
2
3
2
x
                                             =
1
9
(9 ÷ 8 × (1 x )1 x )
1
5
1
5
x
3
2
3
2
x
                                             =
1
9
(9 ÷ 8 × (1 x )1 x )
17
10
17
10
x
                                             =
1
9
× 9 ÷ 8 × (1 x )
1
9
× 1
1
9
x
17
10
17
10
x
                                             =
1
8
(1 x )
1
9
1
9
x
17
10
17
10
x
                                             =
1
8
(1 x )
163
90
163
90
x
                                             =
1
8
× 1
1
8
x
163
90
163
90
x
                                             =
1
8
1
8
x
163
90
163
90
x
                                             = -
607
360
697
360
x
    The equation is transformed into :
      -
607
360
697
360
x = 1 ÷ 3 × (3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x ) x ) x
     Right side of the equation =
1
3
(3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x ) x ) x
    The equation is transformed into :
      -
607
360
697
360
x =
1
3
(3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x ) x ) x
    Remove the bracket on the right of the equation:
     Right side of the equation =
1
3
× 3 ÷ 4 × (4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x )
1
3
x x
                                               =
1
4
(4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x )
1
3
x x
                                               =
1
4
(4 ÷ 6 × (6 ÷ 10 × (1 x ) x ) x )
4
3
x
                                               =
1
4
× 4 ÷ 6 × (6 ÷ 10 × (1 x ) x )
1
4
x
4
3
x
                                               =
1
6
(6 ÷ 10 × (1 x ) x )
1
4
x
4
3
x
                                               =
1
6
(6 ÷ 10 × (1 x ) x )
19
12
x
                                               =
1
6
× 6 ÷ 10 × (1 x )
1
6
x
19
12
x
                                               =
1
10
(1 x )
1
6
x
19
12
x

    
        x≈-20.741935 , 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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