# Video: AQA GCSE Mathematics Foundation Tier Pack 2 β’ Paper 2 β’ Question 8

Simplify 4π¦ β 3π§ β 3π¦ + 5π§.

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### Video Transcript

Simplify four π¦ minus three π§ minus three π¦ plus five π§.

In order to simplify this expression, we need to group or collect like terms. We need to group the four π¦ and negative three π¦. And then separately, the negative three π§ and positive five π§. Firstly, letβs group the π¦ terms, four π¦ minus three π¦. Four minus three is equal to one. Therefore, this is equal to one π¦ or just π¦.

Grouping the π§ terms gives us negative three π§ plus five π§. Negative three plus five is equal to two. This means that negative three π§ plus five π§ is equal to two π§. The expression for π¦ minus three π§ minus three π¦ plus five π§ simplifies to π¦ plus two π§. We can group or collect the terms in either order. π¦ plus two π§ is the same as two π§ plus π¦. Generally, we do them in alphabetical order. In this case, we grouped the π¦s before the π§s.