Year 9 Simplifying Expressions (Like Terms) Worksheet — Level 1 — Answers
Answer sheet with worked solutions for the Year 9 algebraic expressions worksheet.
Year 9 Simplifying Expressions (Like Terms) Worksheet — Level 1 — Answers
Collect the like terms. Only terms with exactly the same letter and power can be added.
1.Simplify: −6x − 5x + 7
Answer: −11x + 7
- −6x − 5x = −11x
2.Simplify: 6x + 9x + 1
Answer: 15x + 1
- 6x + 9x = 15x
3.Simplify: −x + 2x + 3
Answer: x + 3
- −x + 2x = x
4.Simplify: x − 6x + 4
Answer: −5x + 4
- x − 6x = −5x
5.Simplify: −2x + 7x + 9
Answer: 5x + 9
- −2x + 7x = 5x
6.Simplify: −5x + x + 7
Answer: −4x + 7
- −5x + x = −4x
7.Simplify: 5x + 3x + 4
Answer: 8x + 4
- 5x + 3x = 8x
8.Simplify: −3x − x + 2
Answer: −4x + 2
- −3x − x = −4x
9.Simplify: x + 8x + 7
Answer: 9x + 7
- x + 8x = 9x
10.Simplify: 8x − 3x + 5
Answer: 5x + 5
- 8x − 3x = 5x
11.Simplify: −2x + 8x + 2
Answer: 6x + 2
- −2x + 8x = 6x
12.Simplify: 6x + 9x + 3
Answer: 15x + 3
- 6x + 9x = 15x
13.Simplify: 9x − 4x + 3
Answer: 5x + 3
- 9x − 4x = 5x
14.Simplify: −4x + 9x + 1
Answer: 5x + 1
- −4x + 9x = 5x
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
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