Question

– 1 + (– 2 + 5) + [– 4 + (– 6 + 5 – 8)]?

Answer 1

Resposta:

−1−2+5−4−6+5−8

−1+3−4−6+5−8

2−4−6+5−8

2−4+−1−8

2−4+−9

2+−13

= −11

Explicação passo-a-passo: