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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 (5-m)×(10÷m-2m+8)+(10÷m-2m+8)×m = 45 .
    Question type: Equation
    Solution:Original question:
     (5 m )(10 ÷ m 2 m + 8) + (10 ÷ m 2 m + 8) m = 45
    Remove a bracket on the left of the equation::
     5(10 ÷ m 2 m + 8) m (10 ÷ m 2 m + 8) + (10 ÷ m 2 m + 8) m = 45
    Remove a bracket on the left of the equation:
     5 × 10 ÷ m 5 × 2 m + 5 × 8 m (10 ÷ m 2 m + 8) + (10 ÷ m 2 m + 8) m = 45
    The equation is reduced to :
     50 ÷ m 10 m + 40 m (10 ÷ m 2 m + 8) + (10 ÷ m 2 m + 8) m = 45
     Multiply both sides of the equation by: m
     5010 m m + 40 m m (10 ÷ m 2 m + 8) m + (10 ÷ m 2 m + 8) m m = 45 m
    Remove a bracket on the left of the equation:
     5010 m m + 40 m m × 10 ÷ m × m + m × 2 = 45 m
    Remove a bracket on the left of the equation:
     5010 m m + 40 m 1 × 10 ÷ 1 × m + m × 2 = 45 m
    The equation is reduced to :
     5010 m m + 40 m 10 m + m × 2 m m = 45 m
    The equation is reduced to :
     5010 m m + 30 m + m × 2 m m m × 8 = 45 m

    After the equation is converted into a general formula, it is converted into:
    ( 2m + 5 )( m - 2 )=0
    From
        2m + 5 = 0
        m - 2 = 0

    it is concluded that::
        m1=-
5
2
        m2=2
    
    There are 2 solution(s).


解一元二次方程的详细方法请参阅:《一元二次方程的解法》



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