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Respuesta :

Let x represent the number, then 3 times x is in algebraic notation:

[tex]3x,[/tex]

the sum of 3x and 15 in algebraic notation is:

[tex]3x+15.[/tex]

Now, the above expression is equivalent to: (x=n)

[tex]\begin{gathered} 15+3\times n, \\ 15+3n, \\ (n\times3)+15. \end{gathered}[/tex]

Answer:

[tex]\begin{gathered} 15+3n, \\ 15+3\times n, \\ (n\times3)+15. \end{gathered}[/tex]

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