Question

questao 8
vale coroaaaa pra agoraaaaaa

Answer 1

Resposta:

35 + [-21 - (-12 + 15)]

35+[-21-(3)

35+[-24

35-24

11

-20 - [21 + (-20 - 16) + 11]

-20-[21+(-36)+11]

-20-[21-36+11]

-20-(+4)

-24

20 - (16 + 17) - [15 - (18 - 23)]

20-(33)-[15-(-5)]

20-33-[20]

20-33-20

-33

- (-30) - [37 + (35 - 31 -34) - 36]

30-[37+(-30)-36]

30-[7-36]

30-29

1

Espero ter ajudado :()