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calculeaza 42+3+2-7+8+1-7-1-1=

Răspuns :

Raspuns:
42+3+2-7+8+1-7-1-1=40
47-7+8+1-7-1-1=40+8+1-7-1-1=49-7-1-1=42-2=40

Sper ca e de folos si ca ai inteles!

42+3+2-7+8+1-7-1-1=40