x=4y2−12x = 4y^2 - 12x=4y2−12
Work out the value of x x\,x when y=5y = 5y=5
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.