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When n is divided by 7, the remainder is 4. What is the remainder when n+3 is divided by 7
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When n is divided by 7, the remainder is 4. What is the remainder when n+3 is divided by 7

User Bob Marti
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n = 7k +4 where k is an integer
n + 3 = 7k + 4 + 3 = 7k + 7

which is divisible by 7
so the remainder is 0 <--- Answer
User Mariangela
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