Make b b\,b the subject of a=b+25\displaystyle a = \sqrt{\frac{b+2}{5}}a=5b+2. Hence, find the value of b b\,b when a=2a=2a=2.
210 exam-style questions on Eduqas GCSE Maths Changing the Subject of a Formula. Each one has a worked solution and a mark scheme showing where the marks go.