Posted by **Diana** on Tuesday, November 10, 2009 at 6:00pm.

I need someone to refresh my brain on collecting like terms..

17a + 6b - 11a - 9b= thank you

- Algebra -
**Katherine**, Tuesday, November 10, 2009 at 6:01pm
17a 11a i think

- Algebra -
**rachel**, Tuesday, November 10, 2009 at 6:13pm
6a-3b

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