To solve the equation \( 4x - 3 = 3x - 9 \), we can follow these steps:
- Isolate x: Start by getting all terms involving \( x \) on one side and constant terms on the other side: \[ 4x - 3x = -9 + 3 \] This simplifies to: \[ x = -6 \]
So, the solution is \( x = -6 \).
Among the given responses, the correct answer is \( x = -6 \).