Respuesta :

Answer:

[tex]\boxed{x = ~^3\log\frac{3}{4}}[/tex]

Step-by-step explanation:

[tex]3^x + 3^{x + 1} = 3[/tex]

[tex]3^x + 3.3^x = 3[/tex]

[tex]4.3^x = 3[/tex]

[tex]3^x = \frac{3}{4}[/tex]

[tex]x = ~^3\log\frac{3}{4}[/tex]