Success TutoringWorksheets

Year 8 Simplifying Expressions (Like Terms) Worksheet — Level 1 — Practice Set 2 — Answers

Answer sheet with worked solutions for the Year 8 algebraic expressions worksheet.

Success TutoringWorksheetsAnswer sheetYear 8 · Mathematics · Algebraic Expressions

Year 8 Simplifying Expressions (Like Terms) Worksheet — Level 1 — Practice Set 2 — Answers

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

1.Simplify: −3x + 3x + 9

Answer: 9

  1. −3x + 3x = 0
2.Simplify: −5x + 9x + 3

Answer: 4x + 3

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

Answer: −7x + 2

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

Answer: −2x + 7

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

Answer: −5x + 3

  1. −6x + x = −5x
6.Simplify: 3x − 6x + 9

Answer: −3x + 9

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

Answer: −3x + 5

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

Answer: 5x + 8

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

Answer: −5x + 7

  1. −4x − x = −5x
10.Simplify: 5x − 6x + 7

Answer: −x + 7

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

Answer: x + 1

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

Answer: 8x + 4

  1. 3x + 5x = 8x
13.Simplify: 3x + 8x + 6

Answer: 11x + 6

  1. 3x + 8x = 11x
14.Simplify: x + 2x + 3

Answer: 3x + 3

  1. x + 2x = 3x
Free worksheets at worksheets.successtutoring.com · © Success Tutoring · Free for personal and classroom use

Marking tips

  • Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
  • For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
  • Celebrate what went well first, then pick one thing to work on next.