Mary H. answered 12/14/14
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Tutor for Elem. and Middle Sc. Math, Algebra, Geometry and Sciences
Hi Britney,
The 'answer' is simply to simplify the expression.
12c - 6c = 6c, so...
12c - 6c - 4b =
6c - 4b
If they need to be written in alphabetical order,
- 4b + 6c
Hope it helped,
Mary Ann