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Algebraic Expressions

Algebraic Expressions. 1. Word Problems. 2. Evaluating Expressions. 3. Simplifying Expressions. Word Problems. Identify action words (usually operators) Less than M ore than Times Increased by Identify amounts Static Variable. Word Problems.

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Algebraic Expressions

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  1. Algebraic Expressions 1 Word Problems 2 Evaluating Expressions 3 Simplifying Expressions

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

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

  4. Word Problems 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

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

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

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

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

  10. Simplifying Algebraic Equations Simplify

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