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15 votes
True or false? 3a+15b is divisible by 3 for any values of a and b.

User Dorianne
by
5.1k points

2 Answers

10 votes

Answer:

False

Explanation:

Take a=-1 and b=-1/7

-3+-15/7=-36/7 which is not divisible by 3. There are several other examples which I don't even need to prove

User Xeroxoid
by
6.0k points
3 votes

Answer:

true

Explanation:

its TRUE :)

User Catchergeese
by
5.2k points