Answer:
To solve for \( x \) in the equation \( x = 3x + 9 \), we can start by subtracting \( 3x \) from both sides to isolate \( x \). This gives us:
\[ x - 3x = 9 \]
\[ -2x = 9 \]
Then, we divide both sides by \( -2 \):
\[ x = \frac{9}{-2} \]
\[ x = -\frac{9}{2} \]
So, \( x = -\frac{9}{2} \).
