Question

-4-{2+[-3-(-1+7)]+2}​

Answer 1

Resposta:

-4-{2+[-3-(6)]+2}

-4-{2+[-3-6]+2}

-4-{2+[-9]+2}

-4-{2-9+2}

-4-{4-9}

-4-{-5}

-4+5

1