london4700 london4700

11-03-2024
Mathematics

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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)

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