Question

efectua eliminando parentesis
2+{-[-(7+8)+(4-3)}

Answer 1

2+{-[-7-8+4-3}
2+{+7-8-4+3}
2+7-8-4+3=0

Answer 2

2+{-[-(7+8)+(4-3)}
2+{-[-15+1}
2+{-(-14)}
2+{+14}
2+14
16

La respuesta es: 16