A=4p+5qA = 4p + 5qA=4p+5q
p=kp = kp=k q=−2q = -2q=−2
Work out the value of A A\,A in terms of kkk.
296 exam-style questions on Eduqas GCSE Maths Substitution. Each one has a worked solution and a mark scheme showing where the marks go.