Question

Por favor ayudenme
[(+3)-(-2)+(-1)+(+5)-(-5)]

{[(-2)+(+3)+(-5)]+[(-5)+(-5)+(+8)-(+12)][(+8)-(-2)-(-3)]}

{[(+3 )-(+3) -(+5)-(+7)]+[(+5)-(-3)+(-2)]}


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

Answer 1

es 0 simplifica nomas :)