Respuesta :

Step-by-step explanation:

[tex]x = 47[/tex]

[tex]y = 31[/tex]

[tex]z = 15[/tex]

[tex] \: [/tex]

[tex] = 3x + 2y + z[/tex]

[tex] = 3 \times 47 + 2 \times 31 + 15[/tex]

[tex] = 141 + 62 + 15[/tex]

[tex] =2 18[/tex]