a) 38x = 1 (mod 273)
ans: x =194 ( one method to find the answer is 38x =273t +1 ,
put t=0,not possible ,then put t=1,2,3,4,5,................
continue putting values fot t ,check whether we are getting is a multiple of 38
when we put t=27, we get 38 x= (273*27)+1 =7372, which is a multiple of 38
we get x=194)
b) 183x =123 (mod 273)
ans: x = 32 ( here we take 183x = 273t +123
continue putting values fot t =1,2,3,4,.........
check whether we are getting is a multiple of 183
when we put t=21 ,we get 183x = (273*21)+123=5856 ,which is a multiple of 183
we get x = 32 )
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