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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 (1+0.1*20*x)*(1+x)/0.1 = 0.18 .
    Question type: Equation
    Solution:Original question:
     (1 +
1
10
× 20 x )(1 + x ) ÷
1
10
=
9
50
    Remove the bracket on the left of the equation:
     Left side of the equation = 1(1 + x ) × 10 +
1
10
× 20 x (1 + x ) × 10
                                             = 10(1 + x ) + 20 x (1 + x )
                                             = 10 × 1 + 10 x + 20 x (1 + x )
                                             = 10 + 10 x + 20 x (1 + x )
                                             = 10 + 10 x + 20 x × 1 + 20 x x
                                             = 10 + 10 x + 20 x + 20 x x
                                             = 10 + 30 x + 20 x x
    The equation is transformed into :
     10 + 30 x + 20 x x =
9
50

    The solution of the equation:
        x1≈-1.017395 , keep 6 decimal places
        x2≈-0.482605 , 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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