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

The video tutorial explains how to change the subject of a formula, specifically focusing on making 'a' the subject when it appears in two places. The process involves eliminating fractions, rearranging terms, and factorizing to isolate 'a'. The tutorial provides a step-by-step solution to a specific problem, highlighting key steps such as cross-multiplication and factorization. It concludes with a marking scheme and a recap of the solution process.

What is the first step to make 'a' the subject of the formula P = (3a + 5) / (4 - a)?

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Explain how to eliminate the fractions in the equation before isolating 'a'.

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Describe the process of factorizing to isolate 'a' in the equation.

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What is the final expression for 'a' after rearranging the formula?

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List the marks allocated for each step in the process of rearranging the formula.

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