q=5p+3rq = 5p + 3rq=5p+3r
p=6p = 6p=6 r=−4r = -4r=−4
Work out the value of qqq.
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.