p=7q2−10p = 7q^2 - 10p=7q2−10
Work out the value of p p\,p when q=3q = 3q=3
Practise OCR GCSE Maths Substitution with exam-style questions for Foundation and Higher tier. 100 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.