Question

(1)
If 57x – 49y = 252 and 49x – 57y = 172 then find the value of x - y. ​

Answer 1

Answer:

Given :-

49x-57y=172.......(i),and

57x-49y=252......(ii)

Adding (i) and (ii), we get

106x-106y=424

=> x-y=4