Question

60÷{2×[-7+18÷(-3+12)]}-[7×(-3)-18÷(-2)+1]=

Answer 1

60÷{2×[-7+18÷(-3+12)]}-[7×(-3)-18÷(-2)+1]=

60÷{2×[-7+18÷(-3+12)]}-[7×(-3)-9+1]=

60÷{2×[-7+18÷(-3+12)]}-[-21-9+1]=

60÷{2×[-7+18÷(9)]}-[-21-9+1]=

60÷{2×[-7+2]}-[-21-9+1]=

60÷{2×[-5]}-[-21-9+1]=

60÷{-10}-[-21-9+1]=

60÷{-10}-[-29]=

-6-[-29]=

=-6 +29=23

Answer 2

60 : {2 x [- 7 + 18 : (- 3 + 12)]} - [7 x (- 3) - 18 : (- 2) + 1] =
60 : {2 x [- 7 + 18 : 9]} - [- 21 + 9 + 1] =
60 : {2 x [- 7 + 2]} - [- 11] =
60 : {2 x [- 5]} + 11 =
60 : {- 10} + 11 =
- 6 + 11 =

5