jonathan is 32. jonathan is as twice as old as sandy was when jonathan was as old as sandy. how old is sandy?
Let x = the number of years ago it was when Jonathan was the age Sandy is now.
Therefore J - x = S and since J = 32,
32 - x = S
Jonathan is now twice as old as Sandy was x years ago, so
J = 2(S - x) and since J = 32
32 = 2(S - x)
So we have the system of equations:
solve that system, get x=8, S=24.
Checking: 8 years ago Jonathan was 32-8 or 24.
8 years ago Sandy was 24-8 or 16.
Jonathon, being 32 now, is twice Sand'y age then
which was 16, so it checks.
Edwin