Question

-3-{-5+[-2+(-1)]+1}​

Answer 1

Resposta:

Explicação passo-a-passo:

-3-{-5+[-2+(-1)]+1}

-3-{-5+[-2-1]+1}

-3-{-5+[-3]+1}

-3-{-5-3+1}

-3-{-8+1}

-3-{-7}

-3+7

4