Question

responda

(+5-6+4)-{-[+2 (+5+3)]

Answer 1

(+5-6+4)-{-[+2 (+5+3)]}

(-1+4)-{-[+2 +8]}

3-{-[+10]}

3-{-10}

3+10 = 13

Answer 2

(+5-6+4)-{-[+2(+5+3)]}
(+5-6+4)-{-[+2+8]}
(+5-6+4)-{-[10]}
(+5-6+4)-{-10}
(+5-6+4) +10 
3 + 10
13