Answer:
[tex]n[/tex].
Step-by-step explanation:
Assuming that [tex]n \in Z^{+}[/tex], then all number less than [tex]n+1[/tex] are
[tex]n+1-1=n[/tex]
Notice that the "plus one" indicates that the whole number shown by the expression [tex]n+1[/tex] indicates a whole number greater than [tex]n\\[/tex] by one unit. So, we just subtract one whole unit to achive a number less than the given expression.
Therefore, the answer is [tex]n[/tex].