Question 345622
Hi
Note: Tom will "always' be 5 Years older than Jerry!

Let  J be Jerry's age in 2 years.
Question states the following will be true:
.
{{{J = (3/4)*(J+5)}}} Tom always being 5 years older than Jerry or (J+5)!

{{{(1/4)J = 15/4}}}
{{{J = 15}}} Jerry's age in 2 years.
.
Now Jerry is 13 and Tom is 18  (Tom 5 years older than Jerry)
.
Check your answer: In 2 years Jerry will be 3/4 as old as Tom

15 = (3/4) * 20