Year 7 Substitution Worksheet — Level 2 — Answers
Answer sheet with worked solutions for the Year 7 algebraic expressions worksheet.
Success TutoringWorksheetsAnswer sheetYear 7 · Mathematics · Algebraic ExpressionsYear 7 Substitution Worksheet — Level 2 — Answers
Replace the letter with the number, then calculate. Use brackets for negative values.
1.Find the value of 8x when x = 1
Answer: 8
- 8 × 1 + 0
- = 8 + 0 = 8
2.Find the value of 5x − 2 when x = 1
Answer: 3
- 5 × 1 − 2
- = 5 − 2 = 3
3.Find the value of −5x + 3 when x = −2
Answer: 13
- −5 × (−2) + 3
- = 10 + 3 = 13
4.Find the value of −x − 5 when x = 5
Answer: −10
- −1 × 5 − 5
- = −5 − 5 = −10
5.Find the value of −x + 6 when x = −5
Answer: 11
- −1 × (−5) + 6
- = 5 + 6 = 11
6.Find the value of 7x + 6 when x = 1
Answer: 13
- 7 × 1 + 6
- = 7 + 6 = 13
7.Find the value of 6x + 5 when x = 3
Answer: 23
- 6 × 3 + 5
- = 18 + 5 = 23
8.Find the value of 7x + 3 when x = −2
Answer: −11
- 7 × (−2) + 3
- = −14 + 3 = −11
9.Find the value of 3x − 2 when x = −6
Answer: −20
- 3 × (−6) − 2
- = −18 − 2 = −20
10.Find the value of 5x − 4 when x = −5
Answer: −29
- 5 × (−5) − 4
- = −25 − 4 = −29
11.Find the value of 2x + 1 when x = −1
Answer: −1
- 2 × (−1) + 1
- = −2 + 1 = −1
12.Find the value of 7x − 5 when x = −4
Answer: −33
- 7 × (−4) − 5
- = −28 − 5 = −33
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