#NAME?

Question

-13 + -15 =
What is the answer to this

Answer 1

-28

Explanation:

Answer 2

-28

Explanation:

the answer to this question , -13 + -15 =

note that

- x - = -

- x + = -

+ x + = +

+ x - = -

so, -13 + -15 =

-13 -15

= -28