verifica daca -1 este solutiebpt ec a)3x +5
![Verifica Daca 1 Este Solutiebpt Ec A3x 5 class=](https://ro-static.z-dn.net/files/dbd/226b103ed0d25d930fbb15a199672c84.jpg)
3x + 5 = 2
-1 ∈ S atunci x = -1
3 × (-1) + 5 = 2
-3 + 5 = 2
2 = 2
Adevarat.