Class 8 Maths Chapter 2 – Linear Equations in One Variable MCQs (with answers) are available online for students. These multiple choice questions follow the CBSE syllabus (2025-2026) and NCERT guidelines. The questions are organized by chapter to help students understand each topic clearly and improve their exam performance.
MCQs on Class 8 Linear Equations in One Variable
Class 8 students can practice multiple choice questions (MCQs) on Linear Equations in One Variable. Each question has four options, and only one is correct. Try solving each question and check your answers with the ones given below.
Solution: 2x = 10 → x = 5
Solution: 2y = -5 → y = -5/2
Solution: x = 7 × 6 = 42
Solution: x = 12 ÷ 3 = 4
Solution: 33x = 35 → x = 35/33
Solution: x = 5
Solution: x = 24
Solution: Other number = 35 – x
Solution: Side = 20 ÷ 4 = 5 cm
Solution: x = 147/16
12 . Which of the following is not a linear equation in one variable?
Solution: A linear equation in one variable contains only one variable. Option B has two variables (x and y).
13. Solve for x: 2x – 3 = 7
Solution: 2x – 3 = 7 → 2x = 10 → x = 5
14. Solve for y: 2y + 9 = 4
Solution: 2y + 9 = 4 → 2y = -5 → y = -5/2
15. Solve: x/6 = 7
Solution: x/6 = 7 → x = 42
16. Which of the following is not a linear equation in one variable?
A) 33z + 5 = 0
B) 33(x + y) = 0
C) 33x + 5 = 0
D) 33y + 5 = 0
Answer: B
Solution: B has two variables, so it’s not a linear equation in one variable.
17. Solve for x: 2x – 3 = 7
A) 3 B) 5 C) 7 D) 10
Answer: B
2x – 3 = 7 → 2x = 10 → x = 5
18. Solve for y: 2y + 9 = 4
A) 9/2 B) 4/9 C) -4/9 D) -5/2
Answer: D
2y + 9 = 4 → 2y = -5 → y = -5/2
19. Solve: x/6 = 7
A) 42 B) 36 C) 30 D) 24
Answer: A
x = 7 × 6 = 42
20. Solve: 3x = 12
A) 3 B) 4 C) 5 D) 6
Answer: B
x = 12 ÷ 3 = 4
