Question

Operaciones combinadas:
b)-{-7+[-6+15-(-9+13+17)-(6-5)]}
C)-9-[15-(7-8)-6][9-(6-3)]
D)-{14-[9-(6-17)-3-]-[-5-(8-3-7)]}
E)-19-[-7-(6-3-19)]-[-9-2-7]

Answer 1

-{-7+[-6+15-(-9+13+17)-(6-5)]}
-{-7+[9-(-9+30)-(1)]}
-{-7+[9-(21)-1]}
-{-7+[9-21-1]}
-{-7+[-13]}
-{-7-13}
-{-20}
+20

-9-[15-(7-8)-6][9-(6-3)]
-9-[15-(-1)-6][9-(3)]
-9-[15+1-6][9-3]
-9-[16-6][6]
-9-[19][6]
-9-[114]
-9-114
-123


-{14-[9-(6-17)-3-]-[-5-(8-3-7)]}
-{14-[9-(-11)-3-]-[-5-(8-10)]}
-{14-[9+11-3-]-[-5-(-2)]}
-{14-[17]-[-5+2]}
-{14-17-[-3]}
-{-3+3}
- {0}
0


-19-[-7-(6-3-19)]-[-9-2-7]
-19-[-7-(6-22)]-[-18]
-19-[-7-(-16)]+18]
-19-[-7+16]+18
-19-[+9]+18
-19-9+18
-28+18
-10