Adam has some marbles. Bradley has twice as many marbles as Adam. Chris has 5 more marbles than Bradley. In total they have 55 marbles.
Let Adam have x x\,x marbles. Show that
x+2x+(2x+5)=55. x + 2x + (2x + 5) = 55. x+2x+(2x+5)=55.How many marbles does Chris have?
139 exam-style questions on Eduqas GCSE Maths Forming and Solving Equations. Each one has a worked solution and a mark scheme showing where the marks go.