Guided Practice:
3.
Practice Problems:
ANSWER KEY 1 ANSWER KEY 2
Extra Practice: http://www.ixl.com/math/algebra-1/simplify-variable-expressions-involving-like-terms-and-the-distributive-property
More Extra Practice: http://www.ixl.com/math/grade-8/simplify-variable-expressions
For help with word problems: http://www.ixl.com/math/algebra-1/write-variable-expressions
