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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?
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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 Simplesystems
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1 Answer

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2+12a. When adding, you're only collecting "like terms".
User Ethanpil
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