Question

-2-35+3+9-12+3-7-2=(con ejercicios)

Answer 1

-2-35+3+9-12+3-7-2=
-37+12-12-4-2=
-37-6=
-43

:D

Answer 2

$-2-35+3+9-12+3-7-2= \\ \\ -37+3+9-12+3-7-2= \\ \\ -34+9-12+3-7-2= \\ \\ -25-12+3-7-2= \\ \\ -37+3-7-2= \\ \\ -34-7-2= \\ \\ -41-2= \\ \\ = -43$

Saludos!!