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9th Grade Simplifying Expressions (Like Terms) Worksheet — Level 2 — Answers

Answer sheet with worked solutions for the 9th Grade algebraic expressions worksheet.

Success TutoringWorksheetsAnswer sheet9th Grade · Mathematics · Algebraic Expressions

9th Grade Simplifying Expressions (Like Terms) Worksheet — Level 2 — Answers

Collect the like terms. Only terms with exactly the same letter and power can be added.

1.Simplify: 4x + 3x − 2x + 9x

Answer: 2x + 12x

  1. x terms: 4x − 2x = 2x
  2. x terms: 3x + 9x = 12x
2.Simplify: 3x + 5x − 2x − x

Answer: x + 4x

  1. x terms: 3x − 2x = x
  2. x terms: 5x − x = 4x
3.Simplify: 4x + 9x − x + 5x

Answer: 3x + 14x

  1. x terms: 4x − x = 3x
  2. x terms: 9x + 5x = 14x
4.Simplify: −3x + x + 4x + 7x

Answer: x + 8x

  1. x terms: −3x + 4x = x
  2. x terms: x + 7x = 8x
5.Simplify: 5x − 4x + 4x + 4x

Answer: 9x

  1. x terms: 5x + 4x = 9x
  2. x terms: −4x + 4x = 0
6.Simplify: 8x + 8x − 4x − 3x

Answer: 4x + 5x

  1. x terms: 8x − 4x = 4x
  2. x terms: 8x − 3x = 5x
7.Simplify: −x − 6x − 2x − 3x

Answer: −3x − 9x

  1. x terms: −x − 2x = −3x
  2. x terms: −6x − 3x = −9x
8.Simplify: 2x + 9x − 3x + x

Answer: −x + 10x

  1. x terms: 2x − 3x = −x
  2. x terms: 9x + x = 10x
9.Simplify: x − 3x + 4x + 2x

Answer: 5x − x

  1. x terms: x + 4x = 5x
  2. x terms: −3x + 2x = −x
10.Simplify: −4x − 2x + 7x + 7x

Answer: 3x + 5x

  1. x terms: −4x + 7x = 3x
  2. x terms: −2x + 7x = 5x
11.Simplify: −6x − x + 6x − 6x

Answer: −7x

  1. x terms: −6x + 6x = 0
  2. x terms: −x − 6x = −7x
12.Simplify: 9x + 8x + x + x

Answer: 10x + 9x

  1. x terms: 9x + x = 10x
  2. x terms: 8x + x = 9x
13.Simplify: 5x − 6x + x − x

Answer: 6x − 7x

  1. x terms: 5x + x = 6x
  2. x terms: −6x − x = −7x
14.Simplify: 2x + 7x − 4x − 4x

Answer: −2x + 3x

  1. x terms: 2x − 4x = −2x
  2. x terms: 7x − 4x = 3x
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