Question

com resolver a questão 3-{2+(11-15)-[5+(-3+1)]+8}

Answer 1

3-{2+(11-15)-[5+(-3+1)]+8}
3-{2+(-4)-[5+(-2)]+8}
3-{2-4-[5-2]+8}
3-{-2-[3]+8}
3-{-2-3+8}
3-{3}
3-3
0

Answer 2

resposta na imagem::::::::