1. A linear equation in one variable has:
A. One variable of degree 1
B. Two variables
C. Degree 2
D. No variable

2. Which of the following is a linear equation?
A. x² = 4
B. 2x + 3 = 7
C. xy = 6
D. x³ − 1 = 0

3. The solution of x + 5 = 9 is:
A. 2
B. 3
C. 4
D. 5

4. If 3x = 15, then x equals:
A. 3
B. 4
C. 5
D. 6

5. Which method involves changing the sign while shifting terms?
A. Elimination
B. Substitution
C. Transposition
D. Factorisation

6. The equation 5x − 7 = 18 has solution:
A. 3
B. 4
C. 5
D. 7

7. In the equation 2x + 3 = 11, the value of x is:
A. 3
B. 4
C. 5
D. 6

8. Which of the following is not a linear equation?
A. 4x − 1 = 0
B. x/3 = 5
C. x² = 9
D. 7x = 21

9. The solution of 7x = 0 is:
A. 1
B. 7
C. 0
D. −7

10. If x − 6 = 10, then x is:
A. 4
B. 10
C. 16
D. 6

11. Which sign represents equality?
A. +
B. −
C. ×
D. =

12. The value of x in 4x = 20 is:
A. 4
B. 5
C. 6
D. 8

13. Which of the following has variable on both sides?
A. x + 2 = 7
B. 3x = 12
C. 5x − 2 = 2x + 4
D. x = 6

14. The first step in solving a word problem is to:
A. Solve equation
B. Verify answer
C. Read and understand the problem
D. Write final answer

15. Verification is done by:
A. Guessing
B. Replacing the solution in original equation
C. Multiplying terms
D. Dividing terms

16. The solution of 2(x + 3) = 14 is:
A. 2
B. 3
C. 4
D. 5

17. Which equation has x = 2 as solution?
A. x + 3 = 6
B. 2x = 4
C. x − 1 = 0
D. x + 2 = 5

18. If x/5 = 3, then x equals:
A. 8
B. 10
C. 15
D. 20

19. Linear equations are used to solve problems related to:
A. Shapes only
B. Counting only
C. Daily life situations
D. Geometry only

20. The degree of a linear equation is:
A. 0
B. 1
C. 2
D. 3