Question

Ayúdenme a resolver la siguiente operación eliminando paréntesis, corchetes y llaves
2+{-[-(7+8)+(4-3)]-2}

Answer 1

=2+{-[(-15+1)]-2}
=2+{-[-14]-2}
=2+{14-2}
=2+12
=14

Answer 2

2+{-[-(6+8)+(4-3)]-2}
2+{-[-6-8+4-3]-2}
2+{6+8-4+3-2}
2+6+8-4+3-2
19-6
13

saludos