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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+25%)x = 6-40/60 .
    Question type: Equation
    Solution:Original question:
     120 ÷ x + (6 x 120) ÷ (1 +
25
100
) × x = 640 ÷ 60
     Multiply both sides of the equation by: x
     120 + (6 x 120) ÷ (1 +
25
100
) × x x = 6 x 40 ÷ 60 × x
    Remove a bracket on the left of the equation::
     120 + 6 x ÷ (1 +
25
100
) × x x 120 ÷ (1 +
25
100
) × x x = 6 x 40 ÷ 60 × x
    The equation is reduced to :
     120 + 6 x ÷ (1 +
25
100
) × x x 120 ÷ (1 +
25
100
) × x x = 6 x
2
3
x
    The equation is reduced to :
     120 + 6 x ÷ (1 +
25
100
) × x x 120 ÷ (1 +
25
100
) × x x =
16
3
x
     Multiply both sides of the equation by:(1 +
25
100
)
     120(1 +
25
100
) + 6 x x x 120 ÷ (1 +
25
100
) × x x (1 +
25
100
) =
16
3
x (1 +
25
100
)
    Remove a bracket on the left of the equation:
     120 × 1 + 120 ×
25
100
+ 6 x x x 120 ÷ (1 +
25
100
) × x x =
16
3
x (1 +
25
100
)
    Remove a bracket on the right of the equation::
     120 × 1 + 120 ×
25
100
+ 6 x x x 120 ÷ (1 +
25
100
) × x x =
16
3
x × 1 +
16
3
x ×
25
100
    The equation is reduced to :
     120 + 30 + 6 x x x 120 ÷ (1 +
25
100
) × x x (1 +
25
100
) =
16
3
x +
4
3
x
    The equation is reduced to :
     150 + 6 x x x 120 ÷ (1 +
25
100
) × x x (1 +
25
100
) =
20
3
x
     Multiply both sides of the equation by:(1 +
25
100
)
     150(1 +
25
100
) + 6 x x x (1 +
25
100
)120 x x (1 +
25
100
) =
20
3
x (1 +
25
100
)
    Remove a bracket on the left of the equation:
     150 × 1 + 150 ×
25
100
+ 6 x x x (1 +
25
100
)120 x x =
20
3
x (1 +
25
100
)
    Remove a bracket on the right of the equation::
     150 × 1 + 150 ×
25
100
+ 6 x x x (1 +
25
100
)120 x x =
20
3
x × 1 +
20
3
x ×
25
100
    The equation is reduced to :
     150 +
75
2
+ 6 x x x (1 +
25
100
)120 x x (1 +
25
100
) =
20
3
x +
5
3
x
    The equation is reduced to :
     
375
2
+ 6 x x x (1 +
25
100
)120 x x (1 +
25
100
) =
25
3
x
    Remove a bracket on the left of the equation:
     
375
2
+ 6 x x x × 1 + 6 x x x ×
25
100
120 =
25
3
x
    The equation is reduced to :
     
375
2
+ 6 x x x +
3
2
x x x 120 x x =
25
3
x
    Remove a bracket on the left of the equation:
     
375
2
+ 6 x x x +
3
2
x x x 120 x x =
25
3
x
    The equation is reduced to :
     
375
2
+ 6 x x x +
3
2
x x x 120 x x =
25
3
x

    The solution of the equation:
        x1≈-1.114750 , keep 6 decimal places
        x2≈1.121719 , keep 6 decimal places
        x3≈19.993031 , keep 6 decimal places
    
    There are 3 solution(s).


解程的详细方法请参阅:《方程的解法》



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