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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 30%*60*40+（140-100）*50+30（80-50）（140*0.1x-100） = 308 .
    Question type: Equation
    Solution:Original question:
     
30
100
 × 60 × 40 + (140 − 100) × 50 + 30(80 − 50)(140 ×
1
10
 x − 100) = 308
     Left side of the equation = 720 + (140 − 100) × 50 + 30(80 − 50)(140 ×
1
10
 x − 100)
    The equation is transformed into :
     720 + (140 − 100) × 50 + 30(80 − 50)(140 ×
1
10
 x − 100) = 308
    Remove the bracket on the left of the equation:
     Left side of the equation = 720 + 140 × 50 − 100 × 50 + 30(80 − 50)(140 ×
1
10
 x − 100)
                                             = 720 + 7000 − 5000 + 30(80 − 50)(140 ×
1
10
 x − 100)
                                             = 2720 + 30(80 − 50)(140 ×
1
10
 x − 100)
                                             = 2720 + 30 × 80(140 ×
1
10
 x − 100) − 30 × 50(140 ×
1
10
 x − 100)
                                             = 2720 + 2400(140 ×
1
10
 x − 100) − 1500(140 ×
1
10
 x − 100)
                                             = 2720 + 2400 × 140 ×
1
10
 x − 2400 × 100 − 1500(140 ×
1
10
 x − 100)
                                             = 2720 + 33600 x − 240000 − 1500(140 ×
1
10
 x − 100)
                                             = - 237280 + 33600 x − 1500(140 ×
1
10
 x − 100)
                                             = - 237280 + 33600 x − 1500 × 140 ×
1
10
 x + 1500 × 100
                                             = - 237280 + 33600 x − 21000 x + 150000
                                             = - 87280 + 12600 x
    The equation is transformed into :
      - 87280 + 12600 x = 308

    Transposition :
     12600 x = 308 + 87280

    Combine the items on the right of the equation:
     12600 x = 87588

    The coefficient of the unknown number is reduced to 1 :
      x = 87588 ÷ 12600
        = 87588 ×
1
12600
        = 2433 ×
1
350

    We obtained :
      x =
2433
350
    This is the solution of the equation.

    Convert the result to decimal form :
      x = 6.951429



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