A17 solve linear equations in one unknown algebraically (including those with the unknown... Quiz: Pearson Edexcel Maths, Unit 2

The 20 questions

1. What is the first step to solve 2x + 7 = 15?

   • Multiply by 2
   • Divide by 2
   • Add 7
   • Subtract 7

2. The solution of 3x = 12 is

   • 36
   • 4
   • 9
   • 1/4

3. The solution of x/4 = 3 is

   • 0.75
   • 7
   • 1
   • 12

4. A linear equation in one unknown usually has

   • no solutions
   • infinitely many solutions
   • two solutions
   • exactly one solution

5. Which operation undoes multiplication?

   • division
   • squaring
   • subtraction
   • addition

6. The solution of 5 - x = 2 is

   • -7
   • -3
   • 7
   • 3

7. The solution of 4(x - 2) = 12 is

   • x = 5
   • x = 8
   • x = 10
   • x = 2

8. The solution of 2x + 3 = x + 9 is

   • x = 3
   • x = 12
   • x = -6
   • x = 6

9. The solution of 4x - 3 = 2x + 7 is

   • x = -5
   • x = 5
   • x = 10
   • x = 2

10. The solution of (x + 1) / 3 = 4 is

    • x = 7/3
    • x = 1
    • x = 13
    • x = 11

11. The solution of 3(2x - 1) = 2(x + 4) is

    • x = 7/4
    • x = 5
    • x = 2
    • x = 11/4

12. The solution of 0.4x + 1.2 = 5.2 is

    • x = 16
    • x = 1.6
    • x = 4
    • x = 10

13. The solution of x/2 + x/3 = 10 is

    • x = 20
    • x = 6
    • x = 15
    • x = 12

14. Twice a number, plus 3, equals 17. The number is

    • 7
    • 14
    • 5.5
    • 10

15. Three times a number, minus 5, equals 16. The number is

    • 7
    • 8
    • 5
    • 11

16. The solution of 7 - 2x = 3 is

    • x = -2
    • x = 1/2
    • x = 2
    • x = 5

17. The solution of 5(x - 1) - 2(x + 3) = 4 is

    • x = 3
    • x = 5
    • x = 7
    • x = 15

18. The solution of (2x + 1) / 3 = (x - 2) / 2 is

    • x = 8
    • x = 4
    • x = -4
    • x = -8

19. A rectangle has length x + 4 cm and width x cm. Its perimeter is 20 cm. The value of x is

    • x = 4
    • x = 16
    • x = 6
    • x = 3

20. The solution of 3x + 2 = 5x - 6 is

    • x = 4
    • x = 8
    • x = 2
    • x = -4

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