H=w(z−4)H = w(z - 4)H=w(z−4)
Work out the value of H H\,H when w=12w = 12w=12 and z=10z = 10z=10
Practise Edexcel GCSE Maths Substitution with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 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.