Mathematics
         
语言:中文    Language:English
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 2/3(x-2)+5/7(2x-3) = 10/21(x-2)-17/21(2x-3) .
    Question type: Equation
    Solution:Original question:
     2 ÷ 3 × ( x 2) + 5 ÷ 7 × (2 x 3) = 10 ÷ 21 × ( x 2)17 ÷ 21 × (2 x 3)
     Left side of the equation =
2
3
( x 2) +
5
7
(2 x 3)
    The equation is transformed into :
     
2
3
( x 2) +
5
7
(2 x 3) = 10 ÷ 21 × ( x 2)17 ÷ 21 × (2 x 3)
    Remove the bracket on the left of the equation:
     Left side of the equation =
2
3
x
2
3
× 2 +
5
7
(2 x 3)
                                             =
2
3
x
4
3
+
5
7
(2 x 3)
                                             =
2
3
x
4
3
+
5
7
× 2 x
5
7
× 3
                                             =
2
3
x
4
3
+
10
7
x
15
7
                                             =
44
21
x
73
21
    The equation is transformed into :
     
44
21
x
73
21
= 10 ÷ 21 × ( x 2)17 ÷ 21 × (2 x 3)
     Right side of the equation =
10
21
( x 2)
17
21
(2 x 3)
    The equation is transformed into :
     
44
21
x
73
21
=
10
21
( x 2)
17
21
(2 x 3)
    Remove the bracket on the right of the equation:
     Right side of the equation =
10
21
x
10
21
× 2
17
21
(2 x 3)
                                               =
10
21
x
20
21
17
21
(2 x 3)
                                               =
10
21
x
20
21
17
21
× 2 x +
17
21
× 3
                                               =
10
21
x
20
21
34
21
x +
17
7
                                               = -
8
7
x +
31
21
    The equation is transformed into :
     
44
21
x
73
21
= -
8
7
x +
31
21

    Transposition :
     
44
21
x +
8
7
x =
31
21
+
73
21

    Combine the items on the left of the equation:
     
68
21
x =
31
21
+
73
21

    Combine the items on the right of the equation:
     
68
21
x =
104
21

    The coefficient of the unknown number is reduced to 1 :
      x =
104
21
÷
68
21
        =
104
21
×
21
68
        = 26 ×
1
17

    We obtained :
      x =
26
17
    This is the solution of the equation.

    Convert the result to decimal form :
      x = 1.529412



Your problem has not been solved here? Please go to the Hot Problems section!





  New addition:Lenders ToolBox module(Specific location:Math OP > Lenders ToolBox ),welcome。