Question

{ 7 – 2 + [- (3 – 4) + 11 ] – (7 - 15) } =
a) 45
b) 35
c) 25
d) 15

Answer 1

{7-2+[-(3-4)+11]-(7-15)}
{7-2+[+1+11]+8}
{7-2+12+8}
25

Respuesta: C- 25