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 CIE IGCSE Maths Substitution with exam-style questions for Core and Extended tier. 27 questions, matched to the CIE IGCSE Maths (0580) specification and written in Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended) 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.