Respuesta :

Answer: D

Step-by-step explanation:

3(1+x)+7 = 3+3x+7 =3x+10

Answer:

D) 3x+10

Step-by-step explanation:

[tex]3(1 + x) + 7 \\ = 3 + 3x + 7 \\ =3x + 10[/tex]

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