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Ketelinnauani
@Ketelinnauani
April 2020
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Me ajudem ? !!
-15+[(-12)-(+4)]-(-7-4) =
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eluciamonteiro
Verified answer
Pela regra elimina:
1º colchetes
2º parênteses
3º chaves
-15+[(-12)-(+4)]-(-7-4) =
-15 + [-12 - 4] + 7 + 4
-15 - 12 - 4 + 7 + 4
- 31 + 11
- 20
0 votes
Thanks 1
cleyci
-15+
[(-12)-(+4)
]-(-7-4)=
-15+[(-12)-4]-(-7-4)=
-15+[-16]-(-7-4)=
-15-16+11=
-31+11= -20
0 votes
Thanks 0
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Verified answer
Pela regra elimina:1º colchetes
2º parênteses
3º chaves
-15+[(-12)-(+4)]-(-7-4) =
-15 + [-12 - 4] + 7 + 4
-15 - 12 - 4 + 7 + 4
- 31 + 11
- 20
-15+[(-12)-4]-(-7-4)=
-15+[-16]-(-7-4)=
-15-16+11=
-31+11= -20