Question

45-{2-[5+4-(6-2)-(7+3-9)+6]-7}+8​

Answer 1

Resposta:

68

Explicação passo-a-passo:

45-{2-[5+4-(6-2)-(7+3-9)+6]-7}+8

45-{2-[9-(+4)-(10-9)+6]-7}+8

45-{2-[9-4-(+1)+6]-7}+8

45-{2-[9-4-1+6]-7}+8

45-{2-[5+5]-7}+8

45-{2-[+10]-7}+8

45-{2-10-7}+8

45-{-8-7}+8

45-{-15}+8

45+15+8

60+8

68