Answer:
<h2>Bobby made the Christmas list with 13 items, and Johnny with only 5 items.</h2>
Step-by-step explanation:
"Bobby's Christmas list hat 3 more than twice as many items than Johnny's". This statement is represented by:
; where
is Bobby, and
is Johnny.
Then, the problem states, "Johnny asked for 8 fewer items than bobby", it's represented by:

Now, to find the value of each variable, we solve this system of equations by substitution:

Then, we replace this into second equation to find
:

Therefore, Bobby made the Christmas list with 13 items, and Johnny with only 5 items.