Question

01_Resolva as expressões:
r)2-[-3(-+1]}-18=

s)+20{-4-[-8(+12-6-2)+2+3]}=

t){[(-50-10)+11+19]+20]+10=

​

Answer 1

Resposta:

s) +20{-4[-8(12-6-2)+2+3]}

+20{-4[-8+2+2+3]}

+20{-4-1}

+20-5=15