Let a, b, c and meZ, and m 2 2 1. Prove: if a =b (mod m), then GCF (a, m) = GCF (b, m) %3D m 2. Prove: if ac = bc (mod m), then a = b (mod GCF (с, т)

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A: I have explained everything with in the solution. Please go through that.

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A: Refer Explanation below Explanation: