Question

1 resolva as expressões
A)12-(3+15:5-20)=
B)7-[-2-(11-3)+6]=
C)8:2-[23+4(5+2)]=

Answer 1

A) 12-(3+15/5-20) = 12-(3+3-20) = 12-(-14) = 12+14 = 26

B) 7-(-2-8+6) = 7+4 = 11

C) 4-(27.7) = 4 - 189 = -185