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7th Grade Simplifying Expressions (Like Terms) Worksheet — Level 2 — Practice Set 3 — Answers

Answer sheet with worked solutions for the 7th Grade algebraic expressions worksheet.

Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Algebraic Expressions

7th Grade Simplifying Expressions (Like Terms) Worksheet — Level 2 — Practice Set 3 — Answers

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

1.Simplify: −6x + 8x − 4x − 4x

Answer: −10x + 4x

  1. x terms: −6x − 4x = −10x
  2. x terms: 8x − 4x = 4x
2.Simplify: 9x + 5x + 8x + 5x

Answer: 17x + 10x

  1. x terms: 9x + 8x = 17x
  2. x terms: 5x + 5x = 10x
3.Simplify: 6x − 3x + 5x + x

Answer: 11x − 2x

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

Answer: 4x − 2x

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

Answer: 6x + 2x

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

Answer: x − 6x

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

Answer: 3x + 8x

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

Answer: 15x + 6x

  1. x terms: 8x + 7x = 15x
  2. x terms: x + 5x = 6x
9.Simplify: 9x − x + x + 7x

Answer: 10x + 6x

  1. x terms: 9x + x = 10x
  2. x terms: −x + 7x = 6x
10.Simplify: −6x + 8x + 5x − 2x

Answer: −x + 6x

  1. x terms: −6x + 5x = −x
  2. x terms: 8x − 2x = 6x
11.Simplify: −2x + 6x − x + 8x

Answer: −3x + 14x

  1. x terms: −2x − x = −3x
  2. x terms: 6x + 8x = 14x
12.Simplify: 8x + 6x + 2x + 8x

Answer: 10x + 14x

  1. x terms: 8x + 2x = 10x
  2. x terms: 6x + 8x = 14x
13.Simplify: 9x − 5x + 8x + 8x

Answer: 17x + 3x

  1. x terms: 9x + 8x = 17x
  2. x terms: −5x + 8x = 3x
14.Simplify: 5x − 6x + 9x + 3x

Answer: 14x − 3x

  1. x terms: 5x + 9x = 14x
  2. x terms: −6x + 3x = −3x
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