7th Grade Substitution Worksheet — Level 2 — Practice Set 2 — Answers
Answer sheet with worked solutions for the 7th Grade algebraic expressions worksheet.
Success TutoringWorksheetsAnswer sheet7th Grade · Mathematics · Algebraic Expressions7th Grade Substitution Worksheet — Level 2 — Practice Set 2 — Answers
Replace the letter with the number, then calculate. Use parentheses for negative values.
1.Find the value of −5x − 1 when x = −4
Answer: 19
- −5 × (−4) − 1
- = 20 − 1 = 19
2.Find the value of 8x − 6 when x = 7
Answer: 50
- 8 × 7 − 6
- = 56 − 6 = 50
3.Find the value of 5x + 3 when x = 8
Answer: 43
- 5 × 8 + 3
- = 40 + 3 = 43
4.Find the value of 6x + 8 when x = −5
Answer: −22
- 6 × (−5) + 8
- = −30 + 8 = −22
5.Find the value of −x − 4 when x = −5
Answer: 1
- −1 × (−5) − 4
- = 5 − 4 = 1
6.Find the value of 6x + 2 when x = 4
Answer: 26
- 6 × 4 + 2
- = 24 + 2 = 26
7.Find the value of 7x + 4 when x = −6
Answer: −38
- 7 × (−6) + 4
- = −42 + 4 = −38
8.Find the value of 5x − 6 when x = −5
Answer: −31
- 5 × (−5) − 6
- = −25 − 6 = −31
9.Find the value of 9x − 7 when x = −2
Answer: −25
- 9 × (−2) − 7
- = −18 − 7 = −25
10.Find the value of 8x − 3 when x = −5
Answer: −43
- 8 × (−5) − 3
- = −40 − 3 = −43
11.Find the value of 4x − 4 when x = 8
Answer: 28
- 4 × 8 − 4
- = 32 − 4 = 28
12.Find the value of 5x + 2 when x = 7
Answer: 37
- 5 × 7 + 2
- = 35 + 2 = 37
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