Question

d) – 13 – { - 4 + [ 9 + ( - 5 – 6 +12) + ( - 2) ] - 5]

Answer 1

-13-(-4+(9+(-11+12)+(-2))-5
-13-(-4+(9+1)-2)-5
-13-(-4+10-2)-5
-13-(6-2)-5
-13-4-5
-17-5
-22