Year 10 Substitution Worksheet — Level 1 — Practice Set 2 — Answers
Answer sheet with worked solutions for the Year 10 algebraic expressions worksheet.
Success TutoringWorksheetsAnswer sheetYear 10 · Mathematics · Algebraic ExpressionsYear 10 Substitution Worksheet — Level 1 — Practice Set 2 — Answers
Replace the letter with the number, then calculate. Use brackets for negative values.
1.Find the value of 7x + 3 when x = 2
Answer: 17
- 7 × 2 + 3
- = 14 + 3 = 17
2.Find the value of 3x − 6 when x = 4
Answer: 6
- 3 × 4 − 6
- = 12 − 6 = 6
3.Find the value of −x + 8 when x = 8
Answer: 0
- −1 × 8 + 8
- = −8 + 8 = 0
4.Find the value of −2x − 5 when x = 6
Answer: −17
- −2 × 6 − 5
- = −12 − 5 = −17
5.Find the value of 9x − 8 when x = 4
Answer: 28
- 9 × 4 − 8
- = 36 − 8 = 28
6.Find the value of −x − 4 when x = 4
Answer: −8
- −1 × 4 − 4
- = −4 − 4 = −8
7.Find the value of 5x + 2 when x = 7
Answer: 37
- 5 × 7 + 2
- = 35 + 2 = 37
8.Find the value of −2x − 7 when x = 7
Answer: −21
- −2 × 7 − 7
- = −14 − 7 = −21
9.Find the value of −2x − 6 when x = 6
Answer: −18
- −2 × 6 − 6
- = −12 − 6 = −18
10.Find the value of 2x − 5 when x = 3
Answer: 1
- 2 × 3 − 5
- = 6 − 5 = 1
11.Find the value of −2x when x = 7
Answer: −14
- −2 × 7 + 0
- = −14 + 0 = −14
12.Find the value of −5x − 8 when x = 5
Answer: −33
- −5 × 5 − 8
- = −25 − 8 = −33
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