y=k+mxy = k + mxy=k+mx
Work out the value of y y\,y when k=20k = 20k=20, m=−3m = -3m=−3 and x=8x = 8x=8
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.