Before simplifying, how many terms are there in the expression 2 x - 5 y + 3 + x ?

For this case we have the following expression:
 
 Before simplifying we have 4 terms in the expression:
 Two terms of the variable x.
 One Term of the variable y.
 One term constant.
 After simplifying we have:
 
 Only three terms:
 One Term of the variable x.
 One Term of the variable y.
 One term constant.
 
 There are 4 terms in the expression before simplifying