Rearrange the formula P=3w−7w+4m\displaystyle P = \frac{3w - 7}{w + 4m}P=w+4m3w−7 to make w w\,w the subject.
Practise AQA GCSE Maths Rearranging Harder Formulae with exam-style questions for Foundation and Higher tier. 52 questions, matched to the AQA GCSE Maths (8300) specification and written in Paper 1, Paper 2 and Paper 3 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.