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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 【(220+260)*21-X】*0.9+18*21 = 9240 .
    Question type: Equation
    Solution:Original question:
     ((220 + 260) × 21 X ) ×
9
10
+ 18 × 21 = 9240
     Left side of the equation = ((220 + 260) × 21 X ) ×
9
10
+ 378
    The equation is transformed into :
     ((220 + 260) × 21 X ) ×
9
10
+ 378 = 9240
    Remove the bracket on the left of the equation:
     Left side of the equation = (220 + 260) × 21 ×
9
10
X ×
9
10
+ 378
                                             = (220 + 260) ×
189
10
X ×
9
10
+ 378
                                             = 220 ×
189
10
+ 260 ×
189
10
9
10
X + 378
                                             = 4158 + 4914
9
10
X + 378
                                             = 9450
9
10
X
    The equation is transformed into :
     9450
9
10
X = 9240

    Transposition :
      -
9
10
X = 92409450

    Combine the items on the right of the equation:
      -
9
10
X = - 210

    By shifting the terms and changing the symbols on toth sides of the equation, we obtain :
     210 =
9
10
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 :
     
9
10
X = 210

    The coefficient of the unknown number is reduced to 1 :
      X = 210 ÷
9
10
        = 210 ×
10
9
        = 70 ×
10
3

    We obtained :
      X =
700
3
    This is the solution of the equation.

    Convert the result to decimal form :
      X = 233.333333



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