if i subtract -12-(-20) is the answer of that will be positive?
Yes!.
-12 + 20 =+8
if i subtract -12-(-20) is the answer of that will be positive?
Imagine this.
positive numbers are hot numbers and negaitive numbers are cold numbers.
You are in a freezer.
The temp is very cold at -12 degrees
You take away 20 degrees of cold.
If you are taking away cold then the space must get warmer so - - = +
-12 - (-20) = -12 - - 20 = -12 + 20 = 20 - 12 = +8 = 8