What is negative 15 minus negative 6?

Answer 1

If you subtract 15 from -6 you get -21.

If you worked out the problem on paper, this is what it would look like.

-6 - 15 = ?

(change the minus to a plus, and change the sign of 15 from positive to negative)

-6 + -15 = ?

( now you can add negative 6 plus negative 15 which equals negative 21)

-6 + -15 = -21

Answer 2

-15 minus -6 is -9