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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 49*100/X/1.05/90*100 = 78 .
    Question type: Equation
    Solution:Original question:
     49 × 100 ÷ X ÷
21
20
 ÷ 90 × 100 = 78
     Multiply both sides of the equation by: X
     49 × 100 ÷
21
20
 ÷ 90 × 100 = 78 X

    Transposition :
      - 78 X = - 49 × 100 ÷
21
20
 ÷ 90 × 100

    Calculate the items on the right of the equation:
      - 78 X = -
140000
27

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
     
140000
27
 = 78 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 :
     78 X =
140000
27

    The coefficient of the unknown number is reduced to 1 :
      X =
140000
27
 ÷ 78
        =
140000
27
 ×
1
78
        =
70000
27
 ×
1
39

    We obtained :
      X =
70000
1053
    This is the solution of the equation.

    Convert the result to decimal form :
      X = 66.476733



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