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[(n+520:4)×3+27:3]×5=133×15

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Răspuns :

Dianageorgiana794ask

Răspuns:

[(n+520:4)×3+27:3]×5=133×15

(n+130)·3+9=1995:5

3n+390=399-9

3n=390-390

3n=0

n=0

Kitty200704ask

[(n+520:4)×3+27:3]×5=133×15

[(n+130)×3+9]×5=1995

(n+130)×3+9=1995:5

(n+130)×3+9=399

(n+130)×3=399-9

(n+130)×3=390

n+130=390:3

n+130=130

n=0

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