The value of {-4,6} is -4.
The braces {} create a set.
The elements in a set are written inside the braces.
When a set contains only two elements, it is considered a set with two elements or a pair of elements.
In this case, the braces {-4,6} contain two elements: -4 and 6.
Thus, the value of this set is the union of these two elements, which in this case is the sum of the two elements: -4 + 6 = 2