Question

formula of adding integers​

Answer 1

Answer:

Rule: The sum of any integer and its opposite is equal to zero. Summary: Adding two positive integers always yields a positive sum; adding two negative integers always yields a negative sum. To find the sum of a positive and a negative integer, take the absolute value of each integer and then subtract these values.

Answer 2

Answer:[2a+n-1]n/2 where a is the first integer and n is number of consecutive integers

Step-by-step explanation:

use sumation for arithmetic progression you will get the above result