10th Grade Solving Linear Equations Worksheet — Level 1 — Practice Set 4 — Answers
Answer sheet with worked solutions for the 10th Grade linear equations worksheet.
10th Grade Solving Linear Equations Worksheet — Level 1 — Practice Set 4 — Answers
Solve each equation. Show every step and check your answer by substituting it back in.
1.x + 9 = 18
Answer: x = 9
- Subtract 9 from both sides
- x = 18 − 9 = 9
2.x − 4 = 8
Answer: x = 12
- Add 4 to both sides
- x = 8 + 4 = 12
3.x + 8 = 9
Answer: x = 1
- Subtract 8 from both sides
- x = 9 − 8 = 1
4.x − 3 = 9
Answer: x = 12
- Add 3 to both sides
- x = 9 + 3 = 12
5.x + 4 = 13
Answer: x = 9
- Subtract 4 from both sides
- x = 13 − 4 = 9
6.x − 4 = −3
Answer: x = 1
- Add 4 to both sides
- x = −3 + 4 = 1
7.x + 5 = 13
Answer: x = 8
- Subtract 5 from both sides
- x = 13 − 5 = 8
8.3x = 12
Answer: x = 4
- Divide both sides by 3
- x = 12 ÷ 3 = 4
9.x − 1 = 4
Answer: x = 5
- Add 1 to both sides
- x = 4 + 1 = 5
10.8x = 16
Answer: x = 2
- Divide both sides by 8
- x = 16 ÷ 8 = 2
11.9x = 90
Answer: x = 10
- Divide both sides by 9
- x = 90 ÷ 9 = 10
12.8x = 8
Answer: x = 1
- Divide both sides by 8
- x = 8 ÷ 8 = 1
Marking tips
- Give credit for correct method even when the final answer slips — the working shows where the thinking went right.
- For open-ended tasks, use the success criteria as a checklist rather than looking for one "right" answer.
- Celebrate what went well first, then pick one thing to work on next.