L=9m+2nL = 9m + 2nL=9m+2n
Work out the value of L L\,L when m=−3m = -3m=−3 and n=4n = 4n=4
Practise Edexcel IGCSE Maths Substitution with exam-style questions for IGCSE Maths. 27 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.