We see that the right hand limit appears to be 3 and the left hand limit appears to be -3. In this case, when the right hand limit does not equal the left hand limit, then the limit
does not exist.
We have chosen x to be 5 plus some power of 1/10 in the left table and have chosen x to be 5 minus some power of 1/10 in the right table. N indicates this power.