Question

elimine os pretos e os com cheques e calcule o valor de:

mim ajudem pfvr❤️é pra amanhã​

Answer 1

Resposta:

a) $35+(-21-(12+15))=35-21-(12+15)=14-27=-13$

b) $-20-(21+(-20-16)+11)=-20-21+20+16-11=-16$

c) $20-(16+17)-(15-(18-23))=20-16-17-15+18-23=-33$

d) $-(-30)-(37+(35-31-34)-36)=30-37-35+31+34+36=59$