Question

Eliminando os parênteses colchetes e Calcule as somas algébricas:
a)7-[-1+(+3-2)+10=
b)1+(-7+6)-[-3-(9+8)]=
c)-20-[-5+(4-2)-(-1-6+10)]=

Answer 1

Resposta:

b) 1+13-[-3-17]=

1+13+14=

14+14=

28