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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 3x/2 = 9/(6x+8)+3/(2x) .
    Question type: Equation
    Solution:Original question:
     3 x ÷ 2 = 9 ÷ (6 x + 8) + 3 ÷ (2 x )
     Multiply both sides of the equation by:(6 x + 8)
     3 x ÷ 2 × (6 x + 8) = 9 + 3 ÷ (2 x ) × (6 x + 8)
    Remove a bracket on the left of the equation::
     3 x ÷ 2 × 6 x + 3 x ÷ 2 × 8 = 9 + 3 ÷ (2 x ) × (6 x + 8)
    Remove a bracket on the right of the equation::
     3 x ÷ 2 × 6 x + 3 x ÷ 2 × 8 = 9 + 3 ÷ (2 x ) × 6 x + 3 ÷ (2 x ) × 8
    The equation is reduced to :
     9 x x + 12 x = 9 + 18 ÷ (2 x ) × x + 24 ÷ (2 x )
     Multiply both sides of the equation by:(2 × 1)
     9 x x (2 × 1) + 12 x (2 × 1) = 9(2 × 1) + 18 × 1 + 24 ÷ (2 x ) × (2 × 1)
    Remove a bracket on the left of the equation:
     9 x x × 2 × 1 + 12 x (2 × 1) = 9(2 × 1) + 18 × 1 + 24 ÷ (2 x ) × (2 × 1)
    Remove a bracket on the right of the equation::
     9 x x × 2 × 1 + 12 x (2 × 1) = 9 × 2 × 1 + 18 × 1 + 24 ÷ (2 x ) × (2 × 1)
    The equation is reduced to :
     18 x x + 12 x (2 × 1) = 18 + 18 + 24 ÷ (2 x ) × (2 × 1)
    The equation is reduced to :
     18 x x + 12 x (2 × 1) = 36 + 24 ÷ (2 x ) × (2 × 1)
     Multiply both sides of the equation by:(2 x )
     18 x x (2 x ) + 12 x (2 × 1)(2 x ) = 36(2 x ) + 24(2 × 1)
    Remove a bracket on the left of the equation:
     18 x x × 2 x + 12 x (2 × 1)(2 x ) = 36(2 x ) + 24(2 × 1)
    Remove a bracket on the right of the equation::
     18 x x × 2 x + 12 x (2 × 1)(2 x ) = 36 × 2 x + 24(2 × 1)
    The equation is reduced to :
     36 x x x + 12 x (2 × 1)(2 x ) = 72 x + 24(2 × 1)
    Remove a bracket on the left of the equation:
     36 x x x + 12 x × 2 × 1(2 x ) = 72 x + 24(2 × 1)
    Remove a bracket on the right of the equation::
     36 x x x + 12 x × 2 × 1(2 x ) = 72 x + 24 × 2 × 1
    The equation is reduced to :
     36 x x x + 24 x (2 x ) = 72 x + 48
    Remove a bracket on the left of the equation:
     36 x x x + 24 x × 2 x = 72 x + 48
    The equation is reduced to :
     36 x x x + 48 x x = 72 x + 48

    After the equation is converted into a general formula, there is a common factor:
    ( x + 2 )
    From
        x + 2 = 0

    it is concluded that::
        x1=-2
    Solutions that cannot be obtained by factorization:
        x2≈-0.548584 , keep 6 decimal places
        x3≈1.215250 , keep 6 decimal places
    
    There are 3 solution(s).


解程的详细方法请参阅:《方程的解法》



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