Linear equations in one variable MCQ Test – Class 8th Mathematics Online Quiz with Score

Q1. Solve: (x + 5)/(-2) = 3.

A 11
B -11
C 1
D -1

Q2. Solve for z: z/5 - 2 = 0.

A 10
B 2
C -10
D 5

Q3. Solve: (2x - 4)/2 = 6.

A 4
B 8
C 6
D 10

Q4. In the equation 7p - 2 = 12, what is the variable?

A 12
B 7
C p
D 2

Q5. A bag contains red and blue marbles. There are 3 times as many blue marbles as red marbles. If there are 28 marbles in total, how many red marbles are there?

A 14
B 7
C 21
D 28

Q6. Solve: 6 + 2(y - 1) = 10.

A 2
B 4
C 5
D 3

Q7. Solve: 0.3x + 0.2 = 0.5x - 0.4.

A 1
B 3
C 2
D 4

Q8. Which of the following is NOT a linear equation in one variable?

A 2x + 1 = 5
B 3(x-1) = 4
C x/2 + x = 3
D 5/x = 10

Q9. If x/4 = 3/2, what is x?

A 2
B 6
C 12
D 8

Q10. Solve: 3(x - 2) = 2x + 1.

A -5
B 7
C -7
D 5

Q11. Solve: (x - 3)/4 = (x - 5)/2.

A -9
B 9
C 7
D -7

Q12. Solve: (x + 1)/2 + (x - 1)/3 = 6.

A 8
B 5
C 6
D 7

Q13. Solve: 5(y - 2) = 3y + 4.

A 7
B 8
C 5
D 6

Q14. Solve: x/3 + x/4 - x/6 = 5.

A 12
B 8
C 14
D 10

Q15. An equation where the highest power of the variable is one is called a:

A Linear equation
B Polynomial equation
C Cubic equation
D Quadratic equation

Q16. Solve: -3(x + 2) = 9.

A 1
B -5
C 5
D -3

Q17. Solve: 5x = 25 - 5.

A 7
B 6
C 5
D 4

Q18. When transposing a term, what happens?

A It becomes zero.
B Its sign changes.
C It gets divided by the other side.
D It gets multiplied by the other side.

Q19. When you 'solve' an equation, you are finding the:

A Expression
B Inequality
C Identity
D Value of the variable

Q20. Solve: (x/2) + 1 = (x/3) + 2.

A 6
B 3
C -6
D 12

Linear equations in one variable — MCQ Test

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