L=9m+2nL = 9m + 2nL=9m+2n
Work out the value of L L\,L in terms of k k\,k when m=km = km=k and n=−6n = -6n=−6
296 exam-style questions on OCR GCSE Maths Substitution. Each one has a worked solution and a mark scheme showing where the marks go.