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Mathematics 19 Online
OpenStudy (anonymous):

-15 - ( +2 ) =

OpenStudy (anonymous):

Positive times a negative is a negative, so you can simplify: -15 - 2 = What do you think the answer is? Negative plus negative equals..

OpenStudy (anonymous):

You will just add normally and get 17, but since they are both negative, it will be -17.

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