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23-11-2018
Mathematics

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5+(−4)+(−7)+2 jijujuijuijuijujijuijuijuijiji

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Аноним Аноним

23-11-2018

5+(-4)+(-7)+2

5+-4 is 5-4=1

-7+2=-5

so 1 + -5 = 1-5=-4

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