negative

You can think of +numbers as hot numbers and -numbers as cold numbers. 

 

If you take away hot air out of a room will it have the same effect as adding in cold air?

What will happen with each of these?

Yes, they are exactly the same. 

 

 

Here's an example: 2-3=2+(-3)

 

2-3=-1

 

2+(-3)=-1

 

-1=-1, so 2-3=2+(-3) is a true statement.