5-1    Horizontal and Vertical Lines

5-2    Using Tables to Compare Linear Expressions

5-3    Solving ax + b = cx + d

5-4    Using Graphs to Compare Linear Expressions

5-5    Using an Automatic Grapher

5-6    Solving ax + b < cx + d

5-7    Equivalent Formulas

5-8    Advanced Solving Technique I:  Multiplying Through

5-9    Advanced Solving Technique II:  Chunking