ANSWER

EXPLANATION
The given equation is

We add the additive inverse of 31 which is -31 to both sides of the equation to get,

Simplify;


The answer is c. its very simple.
Answer:
as in the number line negative digits occur on the left side if we subtract -2 from -8 we will get our answer that is -6
Step-by-step explanation:
-8-(-2)
-8+2
-6