Answer:
The property used in n+0=7 is additive identity property that is option ‘d’.
Solution:
Given that we have to find the property used in n + 0 = 7
The definition of additive identity property, is an identity element (such as 0 in the group of whole numbers under the operation of addition) that in a given mathematical system leaves unchanged any element to which it is added.
This perfectly satisfies our equation n+0=7.
Hence our the correct answer is additive identity property that is option ‘d’.
