12. Solve for x and y :
(i) xyx + y= 15 ; xyx - y= 17
(ii) 6x + y = 7x - y + 3 ; 12(x+y)= 13(x-y)
where x + y ≠ 0 and x - y ≠ 0
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12. Solve for x and y :
(i) xyx + y= 15 ; xyx - y= 17
(ii) 6x + y = 7x - y + 3 ; 12(x+y)= 13(x-y)
where x + y ≠ 0 and x - y ≠ 0
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