aflati nr pe care daca il inmultiti cu7 obtinrti aclasi rezultat ca atunci cand il adunati cu 42?

Răspunsul a fost dat de: USER3172
30 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
aflati nr pe care daca il inmultiti cu7 obtinrti aclasi rezultat ca atunci cand il adunati cu 42?
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Cel mai bun răspuns
(127)
Fie x numarul cautat
X * 7 = a
X + 42 = a
Egalam cele 2 ecuatii:
7*X= X+42 /-X
6*X=42 --> x=7
Răspunsul a fost dat în data 30 Agustus 2025

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