Question

-12+{27:[3-(-2).(-6)]}

Answer 1

Resolve de dentro para fora
[3-(-2). (-6)]
3+2.(-6)
3-12
9
-----------------------
{27:9}
3
-----------------------
-12+3= -9

Answer 2

-12+{27÷[3-(-2).(-6)]}

= -12 + {27÷[3-(+12)]}

= -12 + {27÷[3-12]}

= -12 + {27÷[-9]}

= -12 + {-3}

= -12 - 3

= -15