how do you subtract negetives

Mathematics
Tutor: None Selected Time limit: 1 Day

-4-(+9)=???

Oct 7th, 2015

Thank you for the opportunity to help you with your question!

-(+)=-

So it's -4-9=-13

In subtracting negatives, just add normally, like in this case, 4+9=13

Then insert a negative sign...-13.

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Oct 7th, 2015

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