Let
x---------> the number of books that Jessica has
y---------> the number of books that Wesley has
we know that
\(x=0\) --------> equation \(1\)
\(y=x+2\) --------> equation \(2\)
Substitute equation \(1\) in equation \(2\)
\(y=(0)+2\)
\(y=2\)
therefore
the answer is
Wesley has \(2\ books\)