Question

-9 + ( -4-3+1 ) - (-2-3 +2 ) 

conta e resposta 

Answer 1

- 9 +  (-6) - (-3)

-9 - 6 + 3

12

Answer 2

-9+(-4-3+1)-(-2-3+2)=
-9-4-3+1+2+3-2=
-9-4-3-2+1+2+3=
-18+6
-12