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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 120÷x+(6x-120)÷(1+20%) = 6-40/60 .
    Question type: Equation
    Solution:Original question:
     120 ÷ x + (6 x 120) ÷ (1 +
20
100
) = 640 ÷ 60
     Multiply both sides of the equation by: x
     120 + (6 x 120) ÷ (1 +
20
100
) × x = 6 x 40 ÷ 60 × x
    Remove a bracket on the left of the equation::
     120 + 6 x ÷ (1 +
20
100
) × x 120 ÷ (1 +
20
100
) × x = 6 x 40 ÷ 60 × x
    The equation is reduced to :
     120 + 6 x ÷ (1 +
20
100
) × x 120 ÷ (1 +
20
100
) × x = 6 x
2
3
x
    The equation is reduced to :
     120 + 6 x ÷ (1 +
20
100
) × x 120 ÷ (1 +
20
100
) × x =
16
3
x
     Multiply both sides of the equation by:(1 +
20
100
)
     120(1 +
20
100
) + 6 x x 120 ÷ (1 +
20
100
) × x (1 +
20
100
) =
16
3
x (1 +
20
100
)
    Remove a bracket on the left of the equation:
     120 × 1 + 120 ×
20
100
+ 6 x x 120 ÷ (1 +
20
100
) × x (1 +
20
100
) =
16
3
x (1 +
20
100
)
    Remove a bracket on the right of the equation::
     120 × 1 + 120 ×
20
100
+ 6 x x 120 ÷ (1 +
20
100
) × x (1 +
20
100
) =
16
3
x × 1 +
16
3
x ×
20
100
    The equation is reduced to :
     120 + 24 + 6 x x 120 ÷ (1 +
20
100
) × x (1 +
20
100
) =
16
3
x +
16
15
x
    The equation is reduced to :
     144 + 6 x x 120 ÷ (1 +
20
100
) × x (1 +
20
100
) =
32
5
x
     Multiply both sides of the equation by:(1 +
20
100
)
     144(1 +
20
100
) + 6 x x (1 +
20
100
)120 x (1 +
20
100
) =
32
5
x (1 +
20
100
)
    Remove a bracket on the left of the equation:
     144 × 1 + 144 ×
20
100
+ 6 x x (1 +
20
100
)120 x (1 +
20
100
) =
32
5
x (1 +
20
100
)
    Remove a bracket on the right of the equation::
     144 × 1 + 144 ×
20
100
+ 6 x x (1 +
20
100
)120 x (1 +
20
100
) =
32
5
x × 1 +
32
5
x ×
20
100
    The equation is reduced to :
     144 +
144
5
+ 6 x x (1 +
20
100
)120 x (1 +
20
100
) =
32
5
x +
32
25
x
    The equation is reduced to :
     
864
5
+ 6 x x (1 +
20
100
)120 x (1 +
20
100
) =
192
25
x
    Remove a bracket on the left of the equation:
     
864
5
+ 6 x x × 1 + 6 x x ×
20
100
120 x (1 +
20
100
) =
192
25
x
    The equation is reduced to :
     
864
5
+ 6 x x +
6
5
x x 120 x (1 +
20
100
) =
192
25
x
    Remove a bracket on the left of the equation:
     
864
5
+ 6 x x +
6
5
x x 120 x × 1120 x =
192
25
x
    The equation is reduced to :
     
864
5
+ 6 x x +
6
5
x x 120 x 24 x =
192
25
x
    The equation is reduced to :
     
864
5
+ 6 x x +
6
5
x x 144 x =
192
25
x

    The solution of the equation:
        x1≈1.208575 , keep 6 decimal places
        x2≈19.858091 , 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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