Respuesta :

Answer:

x = 2

Step-by-step explanation:

Using the rule of logarithms

[tex]log_{b}[/tex] x = n ⇒ x = [tex]b^{n}[/tex]

Given

[tex]log_{3}[/tex] ( x + 7) = 2 , then

x + 7 = 3² = 9 ( subtract 7 from both sides )

x = 2

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