Question

-4-{2+[-3-(-1+7)]+2}=

Answer 1

-4-{2+[-3-(-1+7)]+2}=
=-4-{2+[-3-(6)]+2}=
=-4-{2+[-3-9]+2}=
=-4-{2+[-12]+2}=
=-4-{2-12+2}=
=-4-{-8}=
=-4+8=
=4

acho q é isso

Answer 2

-4-[2+[-3-(-1+7)]+2]》-4-[2+[-3-6]+2]》-4-[2+[-9+2]》-4-[2-7]》-4-(-5)》-4+5》1