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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 (X一100)(3400一20X) = 2400 .
    Question type: Equation
    Solution:Original question:
     ( X − 100)(3400 − 20 X ) = 2400
    Remove the bracket on the left of the equation:
     Left side of the equation = X (3400 − 20 X ) − 100(3400 − 20 X )
                                             = X × 3400 − X × 20 X − 100(3400 − 20 X )
                                             = 3400 X − X × 20 X − 100 × 3400 + 100 × 20 X
                                             = 3400 X − X × 20 X − 340000 + 2000 X
                                             = 5400 X − X × 20 X − 340000
    The equation is transformed into :
     5400 X − X × 20 X − 340000 = 2400

    The solution of the equation:
        X1≈101.758460 , keep 6 decimal places
        X2≈168.241540 , keep 6 decimal places
    
    There are 2 solution(s).


解程的详细方法请参阅:《方程的解法》



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