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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 15200÷(x+70)+8400÷(x+82)+10000÷(x+60) = 142 .
    Question type: Equation
    Solution:Original question:
     15200 ÷ ( x + 70) + 8400 ÷ ( x + 82) + 10000 ÷ ( x + 60) = 142
     Multiply both sides of the equation by:( x + 70)
     15200 + 8400 ÷ ( x + 82) × ( x + 70) + 10000 ÷ ( x + 60) × ( x + 70) = 142( x + 70)
    Remove a bracket on the left of the equation::
     15200 + 8400 ÷ ( x + 82) × x + 8400 ÷ ( x + 82) × 70 + 10000 ÷ ( x + 60) × ( x + 70) = 142( x + 70)
    Remove a bracket on the right of the equation::
     15200 + 8400 ÷ ( x + 82) × x + 8400 ÷ ( x + 82) × 70 + 10000 ÷ ( x + 60) × ( x + 70) = 142 x + 142 × 70
    The equation is reduced to :
     15200 + 8400 ÷ ( x + 82) × x + 588000 ÷ ( x + 82) + 10000 ÷ ( x + 60) × ( x + 70) = 142 x + 9940
     Multiply both sides of the equation by:( x + 82)
     15200( x + 82) + 8400 x + 588000 + 10000 ÷ ( x + 60) × ( x + 70)( x + 82) = 142 x ( x + 82) + 9940( x + 82)
    Remove a bracket on the left of the equation:
     15200 x + 15200 × 82 + 8400 x + 588000 + 10000 ÷ ( x + 60) × ( x + 70)( x + 82) = 142 x ( x + 82) + 9940( x + 82)
    Remove a bracket on the right of the equation::
     15200 x + 15200 × 82 + 8400 x + 588000 + 10000 ÷ ( x + 60) × ( x + 70)( x + 82) = 142 x x + 142 x × 82 + 9940( x + 82)
    The equation is reduced to :
     15200 x + 1246400 + 8400 x + 588000 + 10000 ÷ ( x + 60) × ( x + 70)( x + 82) = 142 x x + 11644 x + 9940( x + 82)
    The equation is reduced to :
     23600 x + 1834400 + 10000 ÷ ( x + 60) × ( x + 70)( x + 82) = 142 x x + 11644 x + 9940( x + 82)
     Multiply both sides of the equation by:( x + 60)
     23600 x ( x + 60) + 1834400( x + 60) + 10000( x + 70)( x + 82) = 142 x x ( x + 60) + 11644 x ( x + 60) + 9940( x + 82)( x + 60)
    Remove a bracket on the left of the equation:
     23600 x x + 23600 x × 60 + 1834400( x + 60) + 10000( x + 70)( x + 82) = 142 x x ( x + 60) + 11644 x ( x + 60) + 9940( x + 82)( x + 60)
    Remove a bracket on the right of the equation::
     23600 x x + 23600 x × 60 + 1834400( x + 60) + 10000( x + 70)( x + 82) = 142 x x x + 142 x x × 60 + 11644 x ( x + 60) + 9940
    The equation is reduced to :
     23600 x x + 1416000 x + 1834400( x + 60) + 10000( x + 70)( x + 82) = 142 x x x + 8520 x x + 11644 x ( x + 60) + 9940( x + 82)
    Remove a bracket on the left of the equation:
     23600 x x + 1416000 x + 1834400 x + 1834400 × 60 + 10000( x + 70)( x + 82) = 142 x x x + 8520 x x + 11644 x ( x + 60) + 9940( x + 82)
    Remove a bracket on the right of the equation::
     23600 x x + 1416000 x + 1834400 x + 1834400 × 60 + 10000( x + 70)( x + 82) = 142 x x x + 8520 x x + 11644 x x + 11644 x
    The equation is reduced to :
     23600 x x + 1416000 x + 1834400 x + 110064000 + 10000( x + 70)( x + 82) = 142 x x x + 8520 x x + 11644 x x + 698640 x
    The equation is reduced to :
     23600 x x + 3250400 x + 110064000 + 10000( x + 70)( x + 82) = 142 x x x + 8520 x x + 11644 x x + 698640 x
    Remove a bracket on the left of the equation:
     23600 x x + 3250400 x + 110064000 + 10000 x ( x + 82) + 10000 × 70( x + 82) = 142 x x x + 8520 x x + 11644 x x + 698640 x
    Remove a bracket on the right of the equation::
     23600 x x + 3250400 x + 110064000 + 10000 x ( x + 82) + 10000 × 70( x + 82) = 142 x x x + 8520 x x + 11644 x x + 698640 x
    The equation is reduced to :
     23600 x x + 3250400 x + 110064000 + 10000 x ( x + 82) + 700000( x + 82) = 142 x x x + 8520 x x + 11644 x x + 698640 x
    Remove a bracket on the left of the equation:
     23600 x x + 3250400 x + 110064000 + 10000 x x + 10000 x × 82 = 142 x x x + 8520 x x + 11644 x x + 698640 x
    Remove a bracket on the right of the equation::
     23600 x x + 3250400 x + 110064000 + 10000 x x + 10000 x × 82 = 142 x x x + 8520 x x + 11644 x x + 698640 x

    The solution of the equation:
        x1≈-78.575418 , keep 6 decimal places
        x2≈-63.676341 , keep 6 decimal places
        x3≈166.871478 , 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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