GCSE Secondary Maths Age 13-17 - Algebra: Subject of a Formula - Explained

The video tutorial explains how to make T the subject of the formula y = T/3 - 2A. It guides through the process of isolating T by adding 2A to both sides and then multiplying by 3. The final answer is T = 3(y + 2A). The tutorial also discusses the marking scheme, emphasizing that expanding the brackets is unnecessary for extra marks.

What is the first step to isolate T in the equation y = T / 3 - 2A?

Explain how you would isolate T from the equation y + 2A = T / 3.

What does multiplying both sides of the equation by three achieve in the process of isolating T?

Why is it unnecessary to expand the brackets in the final answer T = 3(y + 2A)?

What are the two marks awarded for in the process of isolating T?