Section 3.3 Prealgebra
Read Section 3.3: Simiplifying Algebraic Expressions, Pages 187-194. (13 minutes)
College of the Redwoods - 2013
Click https://www.redwoods.edu/Portals/121/PreAlgText/Prealgebra.pdf?ver=2016-02-09-153714-077 link to open resource.