A=p−2qA = p - 2qA=p−2q
p=−4p = -4p=−4 q=−7q = -7q=−7
Work out the value of AAA.
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.