Respuesta :

Answer:

9

Step-by-step explanation:

f(3) = 2(3) + 3

= 9

Answer:

[tex]{ \tt{f(x) = 2x + 3}}[/tex]

f(3) means x = 3, substitute for x as 3 :

[tex]{ \tt{f(3) = 2(3) + 3}} \\ = 6 + 3 \\ = 9[/tex]