H=4f+gH = 4f + gH=4f+g
Work out the value of H H\,H when f=5f = 5f=5 and g=−2g = -2g=−2
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.