Which are true for modulo 12? 1.) Does 5x ≡ 6 mod 12 have a solution? How many? 2.) Does 4x ≡ 6 mod 12 have a solution? How many? 3.) Does x^2+ 1 ≡ 0 mod 12 have a solution? How many? 4.) If xy ≡ 0 mod 12 does it follow that x ≡ 0 mod 12 or y ≡ 0 mod 12?

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Q: Which of the following are true modulo 12? (1) Does 5z = 6 mod 12 have a solution? How many? (2)…

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Q: Does 5x = 6 mod 12 have a solution? How many?

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