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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 (10+x)×1.01-10×0.8 = 1.38 .
    Question type: Equation
    Solution:Original question:
     (10 + x ) ×
101
100
 − 10 ×
4
5
 =
69
50
     Left side of the equation = (10 + x ) ×
101
100
 − 8
    The equation is transformed into :
     (10 + x ) ×
101
100
 − 8 =
69
50
    Remove the bracket on the left of the equation:
     Left side of the equation = 10 ×
101
100
 + x ×
101
100
 − 8
                                             =
101
10
 + x ×
101
100
 − 8
                                             =
21
10
 +
101
100
 x
    The equation is transformed into :
     
21
10
 +
101
100
 x =
69
50

    Transposition :
     
101
100
 x =
69
50
 −
21
10

    Combine the items on the right of the equation:
     
101
100
 x = -
18
25

    The coefficient of the unknown number is reduced to 1 :
      x = -
18
25
 ÷
101
100
        = -
18
25
 ×
100
101
        = - 18 ×
4
101

    We obtained :
      x = -
72
101
    This is the solution of the equation.

    Convert the result to decimal form :
      x = - 0.712871



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