Question

Log in baza 5 din 3x+4=2 cum se rezolva ?? ce formula trebuie sa aplic?

Answer 1

[tex]\log _5\left(3x+4\right)=2 \\ \log _5\left(3x+4\right)=2 \\ 3x+4=25 \\ 3x+4-4=25-4 \\ 3x=21 \\ \frac{3x}{3}=\frac{21}{3} \\ x=7 \\ [/tex]