Initial Diagnostic Audit - Unit B3: Algebraic Concepts
Section B3.1 - Simplifying Expressions

Simplify each of the expressions below.
1.
4a + 5a – 2a =         
2.
3a – b – 4a + 4b =         
Remove the brackets from each of these expressions.
3.
2(3x – 4) =         
4.
x(x + 1) =         
5. Simplify
2(3x – 4y) – 3(x + 5y) =         
Section B3.2 - Simple Equations

Solve each of the following equations for x.
6. x + 7 = 9      x =
7. 3x = 36      x =
8.
x
 = 5      x =
4
9. x – 12 = -4      x =
10. 7x = -21      x =
Section B3.3 - Solving Linear Equations
11. 2x + 7 = 13      x =
12. 4x - 5 = 19      x =
13.
x
  – 4 = 5      x =
3
14. 3(x – 1) = 21      x =
15. 4x – 2 = 8 – 6x      x =

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Produced by Russell Geach for CIMT - April 2013