20
Positive: e.g., +8 - (-4) = +12
12-(-8) = 20
12 - 4 = 8
8
It is not 4 it is 12.
12 - 12 = 0
8-(+8)= 0
Negative 18 minus positive 12 is negative 30.
12 because the negative of the negative is positive
(+12)-(+15) = -3
Positive 8 minus 5, also written as (8 - 5) is equal to three.
-6