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Prove: The sum of two multiples of 3 is a multiple of 3. 3m + 3n = [?](m + n) = a multiple of
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9 votes
Prove: The sum of two multiples of 3

is a multiple of 3.
3m + 3n = [?](m + n)
= a multiple of

User Katapofatico
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3.6k points

1 Answer

4 votes

Just factor out the 3:

3m + 3n = 3 (m + n)

User Sashi Kolli
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