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OpenStudy (anonymous):

Add. –13 + (–8) A. –21 B. –5 C. 5 D. 21 help u get metal and the other person gets a fan

OpenStudy (anonymous):

A negative plus a negative = negative That being said, 13 + 8 = 21 and add the negative sign: -21

OpenStudy (anonymous):

hm

OpenStudy (anonymous):

thx

OpenStudy (anonymous):

makes thing much more easy

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