london4700 london4700 11-03-2024 Mathematics contestada Find all least nonnegative incongruent solutions of the following congruences. (a) 9x ≡ 21 (mod 30) a) x ≡ 3 (mod 10) b) x ≡ 13 (mod 10) c) x ≡ 23 (mod 10) d) x ≡ 33 (mod 10)