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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 7500/(a+74.88)+10000/(a+62.4) = 143 .
    Question type: Equation
    Solution:Original question:
     7500 ÷ ( a +
1872
25
) + 10000 ÷ ( a +
312
5
) = 143
     Multiply both sides of the equation by:( a +
1872
25
)
     7500 + 10000 ÷ ( a +
312
5
) × ( a +
1872
25
) = 143( a +
1872
25
)
    Remove a bracket on the left of the equation:：
     7500 + 10000 ÷ ( a +
312
5
) × a + 10000 ÷ ( a +
312
5
) ×
1872
25
 = 143( a +
1872
25
)
    Remove a bracket on the right of the equation:：
     7500 + 10000 ÷ ( a +
312
5
) × a + 10000 ÷ ( a +
312
5
) ×
1872
25
 = 143 a + 143 ×
1872
25
    The equation is reduced to :
     7500 + 10000 ÷ ( a +
312
5
) × a + 748800 ÷ ( a +
312
5
) = 143 a +
267696
25
     Multiply both sides of the equation by:( a +
312
5
)
     7500( a +
312
5
) + 10000 a + 748800 = 143 a ( a +
312
5
) +
267696
25
( a +
312
5
)
    Remove a bracket on the left of the equation:
     7500 a + 7500 ×
312
5
 + 10000 a + 748800 = 143 a ( a +
312
5
) +
267696
25
( a +
312
5
)
    Remove a bracket on the right of the equation:：
     7500 a + 7500 ×
312
5
 + 10000 a + 748800 = 143 a a + 143 a ×
312
5
 +
267696
25
( a +
312
5
)
    The equation is reduced to :
     7500 a + 468000 + 10000 a + 748800 = 143 a a +
44616
5
 a +
267696
25
( a +
312
5
)
    The equation is reduced to :
     17500 a + 1216800 = 143 a a +
44616
5
 a +
267696
25
( a +
312
5
)
    Remove a bracket on the right of the equation:：
     17500 a + 1216800 = 143 a a +
44616
5
 a +
267696
25
 a +
267696
25
 ×
312
5
    The equation is reduced to :
     17500 a + 1216800 = 143 a a +
44616
5
 a +
267696
25
 a +
83521152
125
    The equation is reduced to :
     17500 a + 1216800 = 143 a a +
490776
25
 a +
83521152
125

    The solution of the equation:
        a1≈-69.837879 , keep 6 decimal places
        a2≈54.935501 , 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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