Farrerjd5ev3yMsb Farrerjd5ev3yMsb

03-12-2016
Mathematics

contestada

-4 8 i know the answer is 4 but i don't know how i got ir

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barrcouchzyx barrcouchzyx

03-12-2016

if it's -4+8, -4 is 4 less than 0. 8 is 8 more than 0, also 4+4. so -4+4 would be zero, then there's 4 more and 0+4 is 4

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