It just so happens that algebra is my speciality.

OK, Liam, you should know that when you say something like 7b+2, that is simply 7b's and a positIve two, just stuck together like that. But when you have the brackets, it gets more difficult.

7(5-2e), you say. Well, a number outside a bracket just means that 'this is how many of these we have.' So, in this case, it means 7 '5-2e's.

That can be simplified down into 35-14e (multiplied it all by seven). Multiply the positive fives first, then the minus two e's by seven, and that's what you get.

That's your answer, as you can't get any further.