Question

calculate: (–1) + (1) + (–1) + (1) + (–1) + (1) + (–1)​

Answer 1

Answer:

-4+3 =-1

Step-by-step explanation:

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Answer 2

Answer:

$(–1) + (1) + (–1) + (1) + (–1) + (1) + (–1) = ( - 1) + ( - 1) + ( - 1) + ( - 1) + 1 + 1 + 1 = - 4 + 3 = - 1$