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d) 3 + 10 - {3 + 10 - [3 + 10 - (3 + 10 - 3) – 3] - 3} - 3.
ajutor


Răspuns :

3+10-{3+10-[3+10-(13-3)-3]-3}-3

3+10-[3+10-(3+10-10-3)-3]-3

3+10-[3+10-(13-10-3)-3]-3

3+10-[3+10-(3-3)-3]-3

3+10-(3+10-0-3)-3

3+10-(13-0-3)-3

3+10-10-3

13-10-3

3-3

0

3 + 10 - {3 + 10 - [3 + 10 - (3 + 10 - 3) – 3] - 3} - 3=3 + 10 - {3 + 10 - [3 + 10 - (13 - 3) – 3] - 3} - 3=3 + 10 - [3 + 10 - (3 + 10 -10- 3) - 3] - 3=3 + 10 - [3 + 10 - (13 -10- 3) - 3] - 3=3 + 10 - [3 + 10 - (3- 3) - 3] - 3=3 + 10 - (3 + 10 - 0 - 3) - 3=3 + 10 - (13 - 0 - 3) - 3=3 + 10 - (13 - 3) - 3=3 + 10 - 10 - 3=3 + 10 - 10 - 3=13-10-3=3-3=0