### Theory:

While the addition of $$2$$ integers depends upon the sign of the two or more integers, the answer can change.

1. In the above example, ($$-3$$) and ($$-4$$) are added both the integers have a negative sign, hence answer is $$-7$$.
2. $$(-6) + (-5) = -11$$
3. $$10 + 12 = 22$$
4. $$(-32) + (-14) = -48$$
5. $$90 + 10 = 100$$