Respuesta :

Answer:

7

Step-by-step explanation:

Answer:

7 is correct answer

Step-by-step explanation:

[tex]7(x - 3) = 28 \\ 7x - 21 = 28 \\ 7x = 28 + 21 \\ 7x = 49 \\ x = \frac{49}{7} \\ x = 7[/tex]

hope it helped you:)