a=5bca = 5bca=5bc b=−4b = -4b=−4 c=−3c = -3c=−3
Work out the value of aaa.
Practise Edexcel IGCSE Maths Substitution with exam-style questions for IGCSE Maths. 27 questions, matched to the Edexcel IGCSE Maths (4MA1) specification and written in Paper 1 and Paper 2 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.