Question

14. Suppose that a and b are integers, a ≡ 11 (mod 19), and
b ≡ 3 (mod 19). Find the integer c with 0 ≤ c ≤ 18 such
that
a) c ≡ 13a (mod 19).
b) c ≡ 8b (mod 19).

Answer 1

well, youknow a=11, and b=3 from the stated information

Answer 2

what is the remainder of: 13(11)/19?

what is the remainder of: 8(3)/19?

Answer 3

thats all?

Answer 4

yep, thats all

Answer 5

thankyou