57/X+Y + 6/X-Y = 5 38/X+Y + 21/X-Y = 9

Asked by mukhilanp mukhi | 21st Mar, 2012, 09:49: PM

Expert Answer:

Let 1/( x + y) = u, 1/(x - y) = v
 
So , 57u + 6v = 5 , 38u + 21v = 9
 
Thus , On Solving we get , u = 1/19 , v = 1/3
So x+y = 19 , x-y = 3
 
We get x = 11 , y =8

Answered by  | 22nd Mar, 2012, 03:29: PM

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