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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 20/87+X/126-（75-X）/500 = 0.381 .
    Question type: Equation
    Solution:Original question:
     20 ÷ 87 + X ÷ 126 − (75 − X ) ÷ 500 =
381
1000
     Left side of the equation =
20
87
 + X ×
1
126
 − (75 − X ) ×
1
500
    The equation is transformed into :
     
20
87
 +
1
126
 X − (75 − X ) ×
1
500
 =
381
1000
    Remove the bracket on the left of the equation:
     Left side of the equation =
20
87
 +
1
126
 X − 75 ×
1
500
 + X ×
1
500
                                             =
20
87
 +
1
126
 X −
3
20
 + X ×
1
500
                                             =
139
1740
 +
313
31500
 X
    The equation is transformed into :
     
139
1740
 +
313
31500
 X =
381
1000

    Transposition :
     
313
31500
 X =
381
1000
 −
139
1740

    Combine the items on the right of the equation:
     
313
31500
 X =
26197
87000

    The coefficient of the unknown number is reduced to 1 :
      X =
26197
87000
 ÷
313
31500
        =
26197
87000
 ×
31500
313
        =
26197
58
 ×
21
313

    We obtained :
      X =
550137
18154
    This is the solution of the equation.

    Convert the result to decimal form :
      X = 30.3039



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