Hi, i've been given this problem for homework but I am completely baffled..I can't even translate the first move into values on the variables..

Any help on this would be greatly appreciated..Sorry if i'm being a bit abrupt here but my head is fried at this stage..

Thanks Guys..

1. The problem statement, all variables and given/known data

Eleven large empty boxes are placed on a table. An unknown number of the boxes is selected and, into each, eight medium boxes are placed. An unknown number of the medium boxes is selected and, into each, eight small boxes are placed.

At the end of this process there are 102 empty boxes. How many boxes are there in total?

2. Relevant equations

3. The attempt at a solution

Variables:

e = number of empty boxes

f = number of full boxes

Initial Values:

e=11

f=0