-1 plus 15 equals what?

15 - 1 = ?

14 positive

when adding a negative with a positive the answer isn't always negative?

No. When adding and subtracting, the sign depends upon the numbers.

When multiplying and dividing a negative and a positive, the answer is negative.

thank you

You're welcome.

so what if you have a -18 divided by -3 is the answer then 6?

Yes,

thank you

can you just clear this up for me...

a negative times a negative is a positive? a negative divided by a negative is a positive also?