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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 700(1+2m)+2100(1+m)+700*11(1+2m)+2100(1+m)(1+2m)*11 = 21700*1.875 .
    Question type: Equation
    Solution:Original question:
     700(1 + 2 m ) + 2100(1 + m ) + 700 × 11(1 + 2 m ) + 2100(1 + m )(1 + 2 m ) × 11 = 21700 ×
15
8
     Left side of the equation = 700(1 + 2 m ) + 2100(1 + m ) + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
    The equation is transformed into :
     700(1 + 2 m ) + 2100(1 + m ) + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m ) = 21700 ×
15
8
    Remove the bracket on the left of the equation:
     Left side of the equation = 700 × 1 + 700 × 2 m + 2100(1 + m ) + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
                                             = 700 + 1400 m + 2100(1 + m ) + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
                                             = 700 + 1400 m + 2100 × 1 + 2100 m + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
                                             = 700 + 1400 m + 2100 + 2100 m + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
                                             = 2800 + 3500 m + 7700(1 + 2 m ) + 23100(1 + m )(1 + 2 m )
                                             = 2800 + 3500 m + 7700 × 1 + 7700 × 2 m + 23100(1 + m )(1 + 2 m )
                                             = 2800 + 3500 m + 7700 + 15400 m + 23100(1 + m )(1 + 2 m )
                                             = 10500 + 18900 m + 23100(1 + m )(1 + 2 m )
                                             = 10500 + 18900 m + 23100 × 1(1 + 2 m ) + 23100 m (1 + 2 m )
                                             = 10500 + 18900 m + 23100(1 + 2 m ) + 23100 m (1 + 2 m )
                                             = 10500 + 18900 m + 23100 × 1 + 23100 × 2 m + 23100 m (1 + 2 m )
                                             = 10500 + 18900 m + 23100 + 46200 m + 23100 m (1 + 2 m )
                                             = 33600 + 65100 m + 23100 m (1 + 2 m )
                                             = 33600 + 65100 m + 23100 m × 1 + 23100 m × 2 m
                                             = 33600 + 65100 m + 23100 m + 46200 m m
                                             = 33600 + 88200 m + 46200 m m
    The equation is transformed into :
     33600 + 88200 m + 46200 m m = 21700 ×
15
8
     Right side of the equation =
81375
2
    The equation is transformed into :
     33600 + 88200 m + 46200 m m =
81375
2

    The solution of the equation:
        m1≈-1.986324 , keep 6 decimal places
        m2≈0.077233 , 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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