-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?

Right.

ok..and a negative times a positive is a negative and the same for dividing a negative by a positive it is always negative?

Right.

Thank you...after awhile of doing these I start to get confused so I wrote it down now. Thanks again.

You're very welcome. It is confusing -- but I'm glad you've got it.