Let's start from where we were after the steps you outlined. The equation we had was:
\[ 8 = v + 12 - \frac{4}{3}v \]
Now, we need to simplify the right side by combining the \(v\) terms. By rearranging and simplifying the equation, we can write it as:
\[ 8 = v - \frac{4}{3}v + 12 \]
Now, we express \(v\) terms as:
\[ v - \frac{4}{3}v = \frac{3}{3}v - \frac{4}{3}v = -\frac{1}{3}v \]
So the equation simplifies to:
\[ 8 = -\frac{1}{3}v + 12 \]
Next, we want to eliminate the \(12\) on the right side. We can do this by subtracting \(12\) from both sides:
\[ 8 - 12 = -\frac{1}{3}v \]
This simplifies to:
\[ -4 = -\frac{1}{3}v \]
Now, to get \(v\) alone, we can multiply both sides by \(-3\):
\[ -4 \times -3 = v \]
Thus:
\[ v = 12 \]
So the final answer is:
\[ \boxed{12} \]