Mathematics
         
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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: 6 questions will be solved this time.Among them
           ☆6 equations

[ 1/6 Equation]
    Work: Find the solution of equation 0.6x+1.5 = 3.1+0.4x .
    Question type: Equation
    Solution:Original question:
     
3
5
x +
3
2
=
31
10
+
2
5
x

    Transposition :
     
3
5
x
2
5
x =
31
10
3
2

    Combine the items on the left of the equation:
     
1
5
x =
31
10
3
2

    Combine the items on the right of the equation:
     
1
5
x =
8
5

    The coefficient of the unknown number is reduced to 1 :
      x =
8
5
÷
1
5
        =
8
5
× 5
        = 8 × 1

    We obtained :
      x = 8
    This is the solution of the equation.

[ 2/6 Equation]
    Work: Find the solution of equation 0.7x+0.8x-4.4 = 9.1 .
    Question type: Equation
    Solution:Original question:
     
7
10
x +
4
5
x
22
5
=
91
10
     Left side of the equation =
3
2
x
22
5
    The equation is transformed into :
     
3
2
x
22
5
=
91
10

    Transposition :
     
3
2
x =
91
10
+
22
5

    Combine the items on the right of the equation:
     
3
2
x =
27
2

    The coefficient of the unknown number is reduced to 1 :
      x =
27
2
÷
3
2
        =
27
2
×
2
3
        = 9 × 1

    We obtained :
      x = 9
    This is the solution of the equation.

[ 3/6 Equation]
    Work: Find the solution of equation 0.4x+0.3x+4.2 = 7.7 .
    Question type: Equation
    Solution:Original question:
     
2
5
x +
3
10
x +
21
5
=
77
10
     Left side of the equation =
7
10
x +
21
5
    The equation is transformed into :
     
7
10
x +
21
5
=
77
10

    Transposition :
     
7
10
x =
77
10
21
5

    Combine the items on the right of the equation:
     
7
10
x =
7
2

    The coefficient of the unknown number is reduced to 1 :
      x =
7
2
÷
7
10
        =
7
2
×
10
7
        = 1 × 5

    We obtained :
      x = 5
    This is the solution of the equation.

[ 4/6 Equation]
    Work: Find the solution of equation 0.7x+3.7 = 5.2+0.2x .
    Question type: Equation
    Solution:Original question:
     
7
10
x +
37
10
=
26
5
+
1
5
x

    Transposition :
     
7
10
x
1
5
x =
26
5
37
10

    Combine the items on the left of the equation:
     
1
2
x =
26
5
37
10

    Combine the items on the right of the equation:
     
1
2
x =
3
2

    The coefficient of the unknown number is reduced to 1 :
      x =
3
2
÷
1
2
        =
3
2
× 2
        = 3 × 1

    We obtained :
      x = 3
    This is the solution of the equation.

[ 5/6 Equation]
    Work: Find the solution of equation 0.4x+0.9x-2 = 1.9 .
    Question type: Equation
    Solution:Original question:
     
2
5
x +
9
10
x 2 =
19
10
     Left side of the equation =
13
10
x 2
    The equation is transformed into :
     
13
10
x 2 =
19
10

    Transposition :
     
13
10
x =
19
10
+ 2

    Combine the items on the right of the equation:
     
13
10
x =
39
10

    The coefficient of the unknown number is reduced to 1 :
      x =
39
10
÷
13
10
        =
39
10
×
10
13
        = 3 × 1

    We obtained :
      x = 3
    This is the solution of the equation.

[ 6/6 Equation]
    Work: Find the solution of equation 0.9x+3 = 8+0.4x .
    Question type: Equation
    Solution:Original question:
     
9
10
x + 3 = 8 +
2
5
x

    Transposition :
     
9
10
x
2
5
x = 83

    Combine the items on the left of the equation:
     
1
2
x = 83

    Combine the items on the right of the equation:
     
1
2
x = 5

    The coefficient of the unknown number is reduced to 1 :
      x = 5 ÷
1
2
        = 5 × 2

    We obtained :
      x = 10
    This is the solution of the equation.



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