Stephen is n n\,n years old. Rachel is k k\,k years older than Stephen Tim is 13 years younger than Stephen.
Write an expression, in terms of n n\,n and kkk, for Rachel's age.
Write an expression for Tim's age.
Write an expression, in terms of n n\,n and kkk, for the total age of Stephen, Rachel and Tim.
267 exam-style questions on Eduqas GCSE Maths Writing an Expression. Each one has a worked solution and a mark scheme showing where the marks go.