To solve any question like this, we must attempt to isolate the x on one side of the equation. To begin, add 2 to both sides to get 2x/3 = x/3 + 3. From there, we can multiply both sides by 3 to get rid of the denominators. When we do this, we will be left with 2x = x + 9. We can then subtract x from both sides, which leaves us with x = 9. We must remember that the question is asking for the value of 2x, not x, so we multiply 9 by 2, leaving us with our answer of 18.