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current location：Mathematical operation > History of Inequality Computation > Answer
    Overview: 1 questions will be solved this time.Among them
           ☆1 equations

[ 1/1 Equation]
    Work: Find the solution of equation (7%-X)/(X-8%) = (4.1002-4)/(4-3.9927) .
    Question type: Equation
    Solution:Original question:
     (
7
100
 − X ) ÷ ( X −
8
100
) = (
20501
5000
 − 4) ÷ (4 −
39927
10000
)
     Multiply both sides of the equation by:( X −
8
100
) ,  (4 −
39927
10000
)
     (
7
100
 − X )(4 −
39927
10000
) = (
20501
5000
 − 4)( X −
8
100
)
    Remove a bracket on the left of the equation:：
     
7
100
(4 −
39927
10000
) − X (4 −
39927
10000
) = (
20501
5000
 − 4)( X −
8
100
)
    Remove a bracket on the right of the equation:：
     
7
100
(4 −
39927
10000
) − X (4 −
39927
10000
) =
20501
5000
( X −
8
100
) − 4( X −
8
100
)
    Remove a bracket on the left of the equation:
     
7
100
 × 4 −
7
100
 ×
39927
10000
 − X (4 −
39927
10000
) =
20501
5000
( X −
8
100
) − 4( X −
8
100
)
    Remove a bracket on the right of the equation:：
     
7
100
 × 4 −
7
100
 ×
39927
10000
 − X (4 −
39927
10000
) =
20501
5000
 X −
20501
5000
 ×
8
100
 − 4( X −
8
100
)
    The equation is reduced to :
     
7
25
 −
279489
1000000
 − X (4 −
39927
10000
) =
20501
5000
 X −
20501
62500
 − 4( X −
8
100
)
    The equation is reduced to :
     
511
1000000
 − X (4 −
39927
10000
) =
20501
5000
 X −
20501
62500
 − 4( X −
8
100
)
    Remove a bracket on the left of the equation:
     
511
1000000
 − X × 4 + X ×
39927
10000
 =
20501
5000
 X −
20501
62500
 − 4( X −
8
100
)
    Remove a bracket on the right of the equation:：
     
511
1000000
 − X × 4 + X ×
39927
10000
 =
20501
5000
 X −
20501
62500
 − 4 X + 4 ×
8
100
    The equation is reduced to :
     
511
1000000
 − X × 4 + X ×
39927
10000
 =
20501
5000
 X −
20501
62500
 − 4 X +
8
25
    The equation is reduced to :
     
511
1000000
 −
73
10000
 X =
501
5000
 X −
501
62500

    Transposition :
      -
73
10000
 X −
501
5000
 X = -
501
62500
 −
511
1000000

    Combine the items on the left of the equation:
      -
43
400
 X = -
501
62500
 −
511
1000000
    This equation has no real solution!



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