Q−4: [2+3 marks] Find the set of solutions of each of the linear congruence:
a) x ≡ 3 (mod 5).
b) 2x ≡ 5 (mod 9).

Originally Posted by mehdi98
Q−4: [2+3 marks] Find the set of solutions of each of the linear congruence:
a) x ≡ 3 (mod 5).
b) 2x ≡ 5 (mod 9).
a) If $k\in\mathbb{Z}$ then $(5k+3)\equiv3(\mod 5)$

b) Similar to part a).