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Rezolvati in multimea numerelor reale

Rezolvati In Multimea Numerelor Reale class=

Răspuns :

[tex]log_\big5 (2x-1) -log_\big53 = 0 \Rightarrow log_\big5 (2x-1) = log_\big53 \Rightarrow \\ \\ \Rightarrow 2x-1 = 3 \Rightarrow 2x = 3 +1 \Rightarrow 2x = 4 \Rightarrow x = \dfrac{4}{2} \Rightarrow \boxed{x=2} [/tex]