Mathematics
         
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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 (-2x+800)×(x-200) = 20000 .
    Question type: Equation
    Solution:Original question:
     ( - 2 x + 800)( x 200) = 20000
    Remove the bracket on the left of the equation:
     Left side of the equation = - 2 x ( x 200) + 800( x 200)
                                             = - 2 x x + 2 x × 200 + 800( x 200)
                                             = - 2 x x + 400 x + 800( x 200)
                                             = - 2 x x + 400 x + 800 x 800 × 200
                                             = - 2 x x + 400 x + 800 x 160000
                                             = - 2 x x + 1200 x 160000
    The equation is transformed into :
      - 2 x x + 1200 x 160000 = 20000

    
        x=300
    
    There are 1 solution(s).


解一元一次方程的详细方法请参阅:《一元一次方程的解法》



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