Description:
This topic deals with simplifying algebraic expressions using addition and subtraction, combining like terms. Sample problem: Simplify: 3x + 2y + 6  x  4 Adaptive Learning Progression: The expressions become increasingly more complex. 
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Sample Levels (out of 10)
Simplify the expression and order your answer based on alphabetical letter and magnitude.
 
Simplify the expression and order your answer based on alphabetical letter and magnitude.
 
Simplify the expression and order your answer based on alphabetical letter and magnitude.
 
Simplify the expression and order your answer based on alphabetical letter and magnitude.
