Year 10 Substitution Worksheet — Level 2 — Practice Set 4 — Answers
Answer sheet with worked solutions for the Year 10 algebraic expressions worksheet.
Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Algebraic ExpressionsYear 10 Substitution Worksheet — Level 2 — Practice Set 4 — Answers
Replace the letter with the number, then calculate. Use brackets for negative values.
1.Find the value of 4x − 8 when x = −4
Answer: −24
- 4 × (−4) − 8
- = −16 − 8 = −24
2.Find the value of 3x − 1 when x = 9
Answer: 26
- 3 × 9 − 1
- = 27 − 1 = 26
3.Find the value of 3x + 5 when x = −6
Answer: −13
- 3 × (−6) + 5
- = −18 + 5 = −13
4.Find the value of 4x + 1 when x = −5
Answer: −19
- 4 × (−5) + 1
- = −20 + 1 = −19
5.Find the value of 5x − 1 when x = 9
Answer: 44
- 5 × 9 − 1
- = 45 − 1 = 44
6.Find the value of 3x − 8 when x = −2
Answer: −14
- 3 × (−2) − 8
- = −6 − 8 = −14
7.Find the value of 7x + 2 when x = 2
Answer: 16
- 7 × 2 + 2
- = 14 + 2 = 16
8.Find the value of x − 5 when x = −1
Answer: −6
- 1 × (−1) − 5
- = −1 − 5 = −6
9.Find the value of −5x + 1 when x = 3
Answer: −14
- −5 × 3 + 1
- = −15 + 1 = −14
10.Find the value of 5x + 8 when x = 1
Answer: 13
- 5 × 1 + 8
- = 5 + 8 = 13
11.Find the value of −3x − 1 when x = −5
Answer: 14
- −3 × (−5) − 1
- = 15 − 1 = 14
12.Find the value of 8x − 7 when x = 3
Answer: 17
- 8 × 3 − 7
- = 24 − 7 = 17
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