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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 (200+x)(20+x/20) = 11520 .
    Question type: Equation
    Solution:Original question:
     (200 + x )(20 + x ÷ 20) = 11520
    Remove the bracket on the left of the equation:
     Left side of the equation = 200(20 + x ÷ 20) + x (20 + x ÷ 20)
                                             = 200 × 20 + 200 x ÷ 20 + x (20 + x ÷ 20)
                                             = 4000 + 10 x + x (20 + x ÷ 20)
                                             = 4000 + 10 x + x × 20 + x x ÷ 20
                                             = 4000 + 30 x + x x ×
1
20
    The equation is transformed into :
     4000 + 30 x + x x ×
1
20
= 11520

    
        x≈190.306027 , keep 6 decimal places
    
    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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