Question 1155594
=== M.  F   J
     2x.    x.   17
     23.  2y.  y

now 2x-23=x-2y
and x-2y=17-y

Therefore, x=23-2y
and x=17+y

so 17+y=23-2y
3y=6
y=2 x=19 and 2x=38

so it is 23  4  2
meaning that it is 
38. 19  17
23  4.  2 

So when Frank was 10, John was 8 ANSWER