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Help what's the answer to 2 + 3a + 9a? 2+2a? Or 14a?

Help what's the answer to 2 + 3a + 9a? 2+2a? Or 14a?-example-1
User Nap
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1 Answer

6 votes
2+12a because you can't put 2 with 12a because they are too different, they wouldn't work.
User Vibol
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