1. Algebraic Expressions 33 22 11 Word Problems Evaluating Expressions Simplifying Expressions

2. Word Problems  Identify action words (usually operators)  Less than  More than  Times  Increased by  Identify amounts  Static  Variable 2

3. Word Problems 3 Write seven fewer than a number t as an algebraic expression. Seven fewer Than a number t

4. Word Problems 4 You start with $20 and save $6 each week. Begin with $20 (static amount) Save $6 (variable amount) Each week (variable)

5. Evaluating Algebraic Expressions  Write the original expression  Substitute for each variable  Follow the Order of Operations 5

6. Evaluating Algebraic Expressions  Evaluate for a=-4, b=5 6

7. Evaluating Algebraic Expressions  Evaluate for x=1, y=1/2 7

8. Simplifying Algebraic Expressions  Like terms  Have the exact same variables (including powers)  Coefficients can be combined  Variables remain unchanged 8 Like Terms

9. Simplifying Algebraic Expressions  Identify like terms  Combine like terms  Rewrite expression 9

10. Simplifying Algebraic Equations Simplify 10