Key concepts: Perform step by step manipulations with equations. Start with a value of a pronumeral and then build up an equation. This follows on from the previous activity and the idea of equivalent expressions and supports the concept of maintaining equivalence by doing the same thing to both sides of an equation.
Apps: Main
Activity
Solution

Key concepts: Appreciate that expressions can be written in different ways. Use CAS to write algebraic expressions in different forms
Apps: Main
Activity
Solution