Make b b\,b the subject of a=b+25\displaystyle a = \sqrt{\frac{b+2}{5}}a=5b+2
Practise OCR GCSE Maths Changing the Subject of a Formula with exam-style questions for Foundation and Higher tier. 80 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.