Quiz

Cambridge Mathematics 9: Equations and inequalities

10 questions with solutions on the Cambridge Mathematics 9 topic: linear equations, brackets and fractions, inequalities, integer solutions.

Type the number or choose the right answer. When you finish, click Check answers and see the solutions.

1. Solve: 3x + 7 = 22Enter a number only

2. Solve: 5(x − 2) = 20Enter a number only

3. Solve: 4x − 3 = 2x + 9Enter a number only

4. Solve: x/4 + 2 = 5Enter a number only

5. Solve: (2x + 1)/3 = 5Enter a number only

6. Solve the inequality: 2x − 5 > 7

A. x < 6

B. x > 6

C. x > 1

D. x > 12

7. Solve the inequality: −3x ≤ 12

A. x ≥ −4

B. x ≤ −4

C. x ≥ 4

D. x ≤ 4

8. How many integers n satisfy −2 < n ≤ 3?Enter a number only

9. The positive number x satisfies x² + x = 56. What is x?Enter a number only

10. Three consecutive integers add up to 48. What is the smallest?Enter a number only