Question

3-{2+(11-15)-[5+(-3+1)]+8}

Answer 1

3-{2+(-4)-[5+(-2)]+8}
3-{2+(-4)-[3]+8}
3-{-2-[3]+8}
3-{-5+8}
3-{3}
0

Answer 2

Olá,

Vamos lá,

= 3-{2+(11-15)-[5+(-3+1)]+8}

= 3-{2+(11-15)-[5+(-2)]+8}

=3-{2+(11-15)-[5-2]+8}

= 3-{2-4 -3 +8}

= 3 - 3

= 0

Resposta: 0