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A.I.M.S. Review

A.I.M.S. Review. Lesson # 24 Simplifying Variable Expressions. Term – Part of a variable expression. A term consists of a sign, number, and sometimes a variable. Example: 5x + 2n – 7 + 4 The terms are +5x +2n -7 +4 There are 4 terms in this expression.

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A.I.M.S. Review

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  1. A.I.M.S. Review

  2. Lesson # 24Simplifying Variable Expressions • Term – Part of a variable expression. A term consists of a sign, number, and sometimes a variable. Example: 5x + 2n – 7 + 4 The terms are +5x+2n-7+4 There are 4 terms in this expression.

  3. 2. When combining terms, think of them as “families”. Only combine terms with the same last name. • Example: 4n – 3 + 2n Which two are like terms?

  4. 2. When combining terms, think of them as “families”. Only combine terms with the same last name. • Example: 4n – 3 + 2n Rewrite with like terms together.

  5. 2. When combining terms, think of them as “families”. Only combine terms with the same last name. • Example: 4n – 3 + 2n Rewritten = 4n + 2n - 3 Combine like terms next.

  6. 2. When combining terms, think of them as “families”. Only combine terms with the same last name. • Example: 4n – 3 + 2n Rewritten = 4n + 2n - 3 Final answer = 6n – 3 *You are done because 6n and -3 are not like terms and can not be combined.

  7. Each number in an expression is either a coefficient (partnered with a variable) or a constant (all alone). • Example: 2x + 7 - 8x + 9 coefficientsconstants

  8. Now You Try  • Simplify: 5x + 2 – 6x – 10 + 4x – 4

  9. Group like terms: • Simplify: 5x + 2 – 6x – 10 + 4x – 4 • 5x - 6x + 4x+ 2 - 10 - 4

  10. Combine like terms: • Simplify: 5x + 2 – 6x – 10 + 4x – 4 • 5x - 6x + 4x+ 2 - 10 - 4 Answer = 3x - 12

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