Question

Find the sum of successer of n and predecessor of n

Answer 1

Answer:

The successor of n= n+1

the predecessor of n=n-1

now sum of successor and predecessor of n= n+1+n-1

=n+ n

=2n

I hope it would help you

thank you

Answer 2

Answer:

Successor of n= n+1

Predecessor of n=n-1

Sum = n+1+n-1= 2n