H=2k+15mH = 2k + 15mH=2k+15m
k=20k = 20k=20 m=−2m = -2m=−2
Work out the value of HHH.
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.