T=7x+3yT = 7x + 3yT=7x+3y
x=8x = 8x=8 y=−5y = -5y=−5
Work out the value of TTT.
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.