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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 (4x/4+x)/(1.69+(4x/(4+x))) = 0.7 .
    Question type: Equation
    Solution:Original question:
     (4 x ÷ 4 + x ) ÷ (
169
100
+ (4 x ÷ (4 + x ))) =
7
10
     Multiply both sides of the equation by:(
169
100
+ (4 x ÷ (4 + x )))
     (4 x ÷ 4 + x ) =
7
10
(
169
100
+ (4 x ÷ (4 + x )))
    Remove a bracket on the left of the equation::
     4 x ÷ 4 + x =
7
10
(
169
100
+ (4 x ÷ (4 + x )))
    Remove a bracket on the right of the equation::
     4 x ÷ 4 + x =
7
10
×
169
100
+
7
10
(4 x ÷ (4 + x ))
    The equation is reduced to :
     1 x + x =
1183
1000
+
7
10
(4 x ÷ (4 + x ))
    The equation is reduced to :
     2 x =
1183
1000
+
7
10
(4 x ÷ (4 + x ))
    Remove a bracket on the right of the equation::
     2 x =
1183
1000
+
7
10
× 4 x ÷ (4 + x )
    The equation is reduced to :
     2 x =
1183
1000
+
14
5
x ÷ (4 + x )
     Multiply both sides of the equation by:(4 + x )
     2 x (4 + x ) =
1183
1000
(4 + x ) +
14
5
x
    Remove a bracket on the left of the equation:
     2 x × 4 + 2 x x =
1183
1000
(4 + x ) +
14
5
x
    Remove a bracket on the right of the equation::
     2 x × 4 + 2 x x =
1183
1000
× 4 +
1183
1000
x +
14
5
x
    The equation is reduced to :
     8 x + 2 x x =
1183
250
+
1183
1000
x +
14
5
x
    The equation is reduced to :
     8 x + 2 x x =
1183
250
+
3983
1000
x

    The solution of the equation:
        x1≈-2.841236 , keep 6 decimal places
        x2≈-1.188049 , keep 6 decimal places
        x3≈0.832736 , 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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