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How to Change the Subject of an Algebraic Equation
I will now explain to you how to change the subject of an equation. The subject of an equation is that variable in an equation which is isolated. For instance: a = 4b - 1. In this equation a is currently the subject. But what if the question asks you to make b the subject? The correct answer would be b = (a + 1)/4. This is perhaps an easy example but you need to understand it to be able to solve the harder ones. Changing the subject of an equation is a typical question on your IGCSE GCSE Maths exam so study all the maths videos below. Each video will contain something new. You will understand how to change the subject if you watch all example questions during your maths revision. Good luck and have fun!!
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