1.

For 3x+y = 81 , 81x-y = 3 , we get (a) no solution(b) x = 21/2 , y = 21/2(c) x = 2 , y = 2/3 (d) x = 17/8 , y = 15/8

Answer»

(d) x = 17/8 , y = 15/8

answer is option (d)


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