S=7u+4vS = 7u + 4vS=7u+4v
Work out the value of S S\,S when u=6u = 6u=6 and v=−8v = -8v=−8
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.