What is a simple way to find 12 mod 7 + 12 mod 7 + 12 mod 7 + 12 mod 7?

asked Nov 1, 2022 231k views

0 votes

by Tipsy

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4 votes

12 ≡ 7 + 5 ≡ 5 (mod 7)

12 + 12 + 12 + 12 ≡ 4•12 ≡ 4•5 ≡ 20 ≡ 14 + 6 ≡ 6 (mod 7)

Ali Mahmoodi answered Nov 8, 2022

5.6k points

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