Respuesta :

Answer:

4 ≤ x ≤ 19/3

Step-by-step explanation:

3 ≤ 3x - 9 ≤ 10

Add 9 to all sides.

12 ≤ 3x ≤ 19

Divide all sides by 3.

4 ≤ x ≤ 19/3

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