Question

quanto é 3- { -10+[15-(10+8)-1]} (quero a conta, por favor)

Answer 1

3-{-10+[15-(10+8)-1]}=
=3-{-10+[15-(18)-1]}
=3-{-10+[15-18-1]}
=3-{-10+[15-19]}
=3-{-10+[-4]}
=3-{-10-4}
=3-{-14}
=3+14
=17