Question

Xm-2m if x=-2 And m=-3 How do I end up with 12?

Answer 1

-2(-3)=6 because two negatives always make a positive. 2m=-6, because one positive and one negative make a negative. The expression should look something like this: 6-(-6), and since two negative signs make a positive sign, it becomes 6+6, which is 12.
Hope that helped you.