Respuesta :

Answer:

10

Step-by-step explanation:

Replacing x for three (x=3) would make the equation then read 3+7

Answer:

The answer is 10.

Step-by-step explanation:

You have to substitute x = 3 into the expression :

[tex]x + 7[/tex]

Let x = 3,

[tex]3 + 7 \\ = 10[/tex]