Linear equations and inequalities

Written by Hassan Raza (Mathematics)

Class 9 · Mathematics · 10 questions

Name: ____________________   Date: ____________

1. Solve 3x + 5 = 20.

   • A x = 15
   • B x = 5
   • C x = 25/3
   • D x = 8

2. Solve 2x - 7 = 9.

   • A x = 1
   • B x = 2
   • C x = 16
   • D x = 8

3. Solve x/4 = 7.

   • A x = 28
   • B x = 3
   • C x = 11
   • D x = 1.75

4. Solve the inequality 2x + 1 > 7.

   • A x < 3
   • B x > 4
   • C x > 3
   • D x > 6

5. When both sides of an inequality are multiplied by a negative number, the inequality sign:

   • A Disappears
   • B Becomes equal
   • C Stays the same
   • D Reverses

6. The sum of two consecutive numbers is 41. What is the smaller number?

   • A 22
   • B 21
   • C 19
   • D 20

7. Solve 5x = 35.

   • A x = 7
   • B x = 40
   • C x = 30
   • D x = 175

8. Solve x + 9 = 15.

   • A x = 9
   • B x = -6
   • C x = 24
   • D x = 6

9. The solution of 2(x - 1) = 8 is:

   • A x = 5
   • B x = 4
   • C x = 9
   • D x = 3

10. Solve the inequality x - 3 < 2.

    • A x < 5
    • B x < -1
    • C x > 5
    • D x > -1