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Calculati: 5-(+10) - (-8) -(+20)+(+12)-(+17)

Răspuns :

5 -10 + 8 -20 +12 -17 = 
-5 + 8 -20 + 12 -17 = 
+ 3 -20 + 12 -17=
-17 + 12 -17 = 
- 5 -17 = - 22
5-10+8-20+12-17=-22
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