Question

Ayuda porfa

Efectuar

856 + {19 - 3 - [6 + (5 - 3) - (2 + 1) + (5 - 3]} - 864

Answer 1

856+{19-3-[6+2]-3+2}-864

856+{19-3-8-3+2}-864

856+{19-16}-864

856+3-864

859-864

-5