Make x x\,x the subject of the formula a=x+4x+2\displaystyle a = \frac{x+4}{x+2}a=x+2x+4
Practise OCR GCSE Maths Rearranging Harder Formulae with exam-style questions for Foundation and Higher tier. 52 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.