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Mathematics 20 Online
OpenStudy (anonymous):

is -9-(-10) 19

OpenStudy (kendricklamar2014):

I believe you mean: Is -9-(-10) = 19

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

and i got 19

OpenStudy (kendricklamar2014):

\[-9-(-10) = 19\] \[= -9 + 10\] \[= 1\]

OpenStudy (anonymous):

dont we have to add?!?!

OpenStudy (kendricklamar2014):

Yes. you add -9 + 10

OpenStudy (anonymous):

oh umm...-19

OpenStudy (kendricklamar2014):

No. its 1 like I said up there ^

OpenStudy (anonymous):

so if negative and positve = a negative i have to subtract which is -1

OpenStudy (kendricklamar2014):

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