Taken from practise exam:

QUESTION SIX

Peter has more than twice as many CDs as Mary.

Altogether they have 97 CDs.

Write a relevant equation, and use it to find theleast numberof CDs that Peter could have.

Least number of CDs that Peter could have =

Please explain how I would write an equation to make sence of this. I don't have a clue.

Thanks

Sean