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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 0.85*x+(0.85*x-17.5)/(26.25-10.25*x)*(100-x) = 75 .
    Question type: Equation
    Solution:Original question:
     
17
20
x + (
17
20
x
35
2
) ÷ (
105
4
41
4
x ) × (100 x ) = 75
     Multiply both sides of the equation by:(
105
4
41
4
x )
     
17
20
x (
105
4
41
4
x ) + (
17
20
x
35
2
)(100 x ) = 75(
105
4
41
4
x )
    Remove a bracket on the left of the equation::
     
17
20
x ×
105
4
17
20
x ×
41
4
x + (
17
20
x
35
2
)(100 x ) = 75(
105
4
41
4
x )
    Remove a bracket on the right of the equation::
     
17
20
x ×
105
4
17
20
x ×
41
4
x + (
17
20
x
35
2
)(100 x ) = 75 ×
105
4
75 ×
41
4
x
    The equation is reduced to :
     
357
16
x
697
80
x x + (
17
20
x
35
2
)(100 x ) =
7875
4
3075
4
x
    Remove a bracket on the left of the equation:
     
357
16
x
697
80
x x +
17
20
x (100 x )
35
2
(100 x ) =
7875
4
3075
4
x
    Remove a bracket on the left of the equation:
     
357
16
x
697
80
x x +
17
20
x × 100
17
20
x x
35
2
=
7875
4
3075
4
x
    The equation is reduced to :
     
357
16
x
697
80
x x + 85 x
17
20
x x
35
2
(100 x ) =
7875
4
3075
4
x
    The equation is reduced to :
     
1717
16
x
697
80
x x
17
20
x x
35
2
(100 x ) =
7875
4
3075
4
x
    Remove a bracket on the left of the equation:
     
1717
16
x
697
80
x x
17
20
x x
35
2
× 100 +
35
2
x =
7875
4
3075
4
x
    The equation is reduced to :
     
1717
16
x
697
80
x x
17
20
x x 1750 +
35
2
x =
7875
4
3075
4
x
    The equation is reduced to :
     
1997
16
x
697
80
x x
17
20
x x 1750 =
7875
4
3075
4
x

    The solution of the equation:
        x1≈2.560976 , keep 6 decimal places
        x2≈4.365674 , keep 6 decimal places
        x3≈89.078770 , 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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