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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*(1+8%)*(1+8%)*(1+8%)*(1+8%)*(1+8%)-X = 31 .
    Question type: Equation
    Solution:Original question:
      X (1 +
8
100
)(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) − X = 31
    Remove the bracket on the left of the equation:
     Left side of the equation = X × 1(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X ×
8
100
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)
                                             = X × 1 × 1(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X × 1 ×
8
100
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)
                                             = X × 1(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X ×
8
100
                                             = X × 1 × 1(1 +
8
100
)(1 +
8
100
) + X × 1 ×
8
100
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
                                             = X × 1(1 +
8
100
)(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)
                                             = X × 1 × 1(1 +
8
100
) + X × 1 ×
8
100
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)
                                             = X × 1(1 +
8
100
) + X ×
2
25
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
                                             = X × 1 × 1 + X × 1 ×
8
100
 + X ×
2
25
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)
                                             = X × 1 + X ×
2
25
 + X ×
2
25
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X
                                             =
2
25
 X + X ×
2
25
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
(1 +
8
100
)
                                             =
2
25
 X + X ×
2
25
 × 1 + X ×
2
25
 ×
8
100
 + X ×
2
25
(1 +
8
100
)(1 +
8
100
)
                                             =
2
25
 X + X ×
2
25
 + X ×
4
625
 + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
                                             =
104
625
 X + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X
                                             =
104
625
 X + X ×
2
25
 × 1(1 +
8
100
) + X ×
2
25
 ×
8
100
(1 +
8
100
) + X ×
2
25
                                             =
104
625
 X + X ×
2
25
(1 +
8
100
) + X ×
4
625
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)
                                             =
104
625
 X + X ×
2
25
 × 1 + X ×
2
25
 ×
8
100
 + X ×
4
625
(1 +
8
100
) + X
                                             =
104
625
 X + X ×
2
25
 + X ×
4
625
 + X ×
4
625
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)
                                             =
158
625
 X + X ×
4
625
(1 +
8
100
) + X ×
2
25
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X ×
8
100
                                             =
158
625
 X + X ×
4
625
 × 1 + X ×
4
625
 ×
8
100
 + X ×
2
25
(1 +
8
100
)(1 +
8
100
)
                                             =
158
625
 X + X ×
4
625
 + X ×
8
15625
 + X ×
2
25
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X
                                             =
4058
15625
 X + X ×
2
25
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
) + X ×
8
100
(1 +
8
100
)(1 +
8
100
)(1 +
8
100
)
                                             =
4058
15625
 X + X ×
2
25
 × 1(1 +
8
100
)(1 +
8
100
) + X ×
2
25
 ×
8
100
(1 +
8
100
)(1 +
8
100
)
                                             =
4058
15625
 X + X ×
2
25
(1 +
8
100
)(1 +
8
100
) + X ×
4
625
(1 +
8
100
)(1 +
8
100
) + X ×
8
100
                                             =
4058
15625
 X + X ×
2
25
 × 1(1 +
8
100
) + X ×
2
25
 ×
8
100
(1 +
8
100
) + X ×
4
625
                                             =
4058
15625
 X + X ×
2
25
(1 +
8
100
) + X ×
4
625
(1 +
8
100
) + X ×
4
625
(1 +
8
100
)(1 +
8
100
)

    
        X≈66.051876 , 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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