9th Grade Simplifying Expressions (Like Terms) Worksheet — Level 1 — Practice Set 3 — Answers
Answer sheet with worked solutions for the 9th Grade algebraic expressions worksheet.
9th 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: 4x + 5x + 1
Answer: 9x + 1
- 4x + 5x = 9x
2.Simplify: 6x + x + 6
Answer: 7x + 6
- 6x + x = 7x
3.Simplify: −4x − 3x + 1
Answer: −7x + 1
- −4x − 3x = −7x
4.Simplify: 9x + 4x + 4
Answer: 13x + 4
- 9x + 4x = 13x
5.Simplify: 7x + x + 5
Answer: 8x + 5
- 7x + x = 8x
6.Simplify: −x + 4x + 5
Answer: 3x + 5
- −x + 4x = 3x
7.Simplify: −3x − 2x + 7
Answer: −5x + 7
- −3x − 2x = −5x
8.Simplify: −5x + 7x + 5
Answer: 2x + 5
- −5x + 7x = 2x
9.Simplify: −3x − 2x + 5
Answer: −5x + 5
- −3x − 2x = −5x
10.Simplify: −6x − 3x + 6
Answer: −9x + 6
- −6x − 3x = −9x
11.Simplify: 4x + 8x + 3
Answer: 12x + 3
- 4x + 8x = 12x
12.Simplify: 4x + 4x + 5
Answer: 8x + 5
- 4x + 4x = 8x
13.Simplify: 6x + 3x + 9
Answer: 9x + 9
- 6x + 3x = 9x
14.Simplify: 9x − 4x + 9
Answer: 5x + 9
- 9x − 4x = 5x
Marking tips
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