Calcule as adiçôes algébrica
- 17 + 40 + 21 - 16 - 33
20 + ( - 9 + 12) - ( - 15 + 20)
2 - { - 11 + [ 17 - ( - 12 + 10 ) - 3 ]}
- 17 + 40 + 21 - 16 - 33
20 + ( - 9 + 12) - ( - 15 + 20)
2 - { - 11 + [ 17 - ( - 12 + 10 ) - 3 ]}
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Verified answer
Resposta:
-17+40+21-16-33=
23+21-16-33=
44-16-33=
28-33=
-5
20+(-9+12)-(-15+20)=
20+3-5=
23-5=
18
2- {-11+[17-(-12+10)-3]}=
2- {-11+[17-(-2)-3]}=
2- {-11+[17+2-3]}=
2- {-11+16}=
2-5=
-3