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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 (x+17)/5-(3x-7)/4 = -2 .
    Question type: Equation
    Solution:Original question:
     ( x + 17) ÷ 5 − (3 x − 7) ÷ 4 = - 2
    Remove the bracket on the left of the equation:
     Left side of the equation = x ×
1
5
 + 17 ×
1
5
 − (3 x − 7) ×
1
4
                                             = x ×
1
5
 +
17
5
 − (3 x − 7) ×
1
4
                                             =
1
5
 x +
17
5
 − 3 x ×
1
4
 + 7 ×
1
4
                                             =
1
5
 x +
17
5
 −
3
4
 x +
7
4
                                             = -
11
20
 x +
103
20
    The equation is transformed into :
      -
11
20
 x +
103
20
 = - 2

    Transposition :
      -
11
20
 x = - 2 −
103
20

    Combine the items on the right of the equation:
      -
11
20
 x = -
143
20

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
     
143
20
 =
11
20
 x

    If the left side of the equation is equal to the right side, then the right side must also be equal to the left side, that is :
     
11
20
 x =
143
20

    The coefficient of the unknown number is reduced to 1 :
      x =
143
20
 ÷
11
20
        =
143
20
 ×
20
11
        = 13 × 1

    We obtained :
      x = 13
    This is the solution of the equation.



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