Question

=(1/5) [5 + (n + -n)] IS WHAT PROPERTY ?

Answer 1

it is not any property

Answer 2

SO Reflexive ?

Answer 3

if there was something on the other side of the equal sign, maybe, but
\[=\frac{1}{5}[5+(n-n)]\] not anything
you cannot have an equal sign with nothing on one side of it

Answer 4

if you mean what property shows
\[1==\frac{1}{5}[5+(n-n)]\] then it is a combination of several