I think of a number, I multiply it by 3, I add 4, the answer is the same as multiplying by 5 and subtracting 2.
You're familiar now with how this is expressed algebraically. You should have got 3n + 4 = 5n-2.
- Do you think that there is a way of solving this with the flow chart method? What happens when you try to?
- We can conclude that the only way to solve this is by using the balance method.
Using our marbles and boxes idea we have
