y=x+10z\displaystyle y = \frac{x + 10}{z}y=zx+10
Make z z\,z the subject of the formula.
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.