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7th Grade Simplifying Expressions (Like Terms) Worksheet — Level 1 — 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 1 — Practice Set 3 — Answers

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

1.Simplify: −5x + 2x + 1

Answer: −3x + 1

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

Answer: 5x + 4

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

Answer: 4x + 9

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

Answer: −2x + 7

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

Answer: −9x + 1

  1. −3x − 6x = −9x
6.Simplify: −6x + 9x + 1

Answer: 3x + 1

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

Answer: 4x + 8

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

Answer: −x + 1

  1. 5x − 6x = −x
9.Simplify: 9x + 9x + 9

Answer: 18x + 9

  1. 9x + 9x = 18x
10.Simplify: −6x − 3x + 3

Answer: −9x + 3

  1. −6x − 3x = −9x
11.Simplify: 3x + 8x + 4

Answer: 11x + 4

  1. 3x + 8x = 11x
12.Simplify: 5x + 5x + 8

Answer: 10x + 8

  1. 5x + 5x = 10x
13.Simplify: −6x + 2x + 7

Answer: −4x + 7

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

Answer: −2x + 4

  1. −6x + 4x = −2x
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