In a Cartesian coordinate system, the quadrants are defined as follows:
- Quadrant I (l): Both x and y values are positive (+, +).
- Quadrant II (ll): x values are negative and y values are positive (-, +).
- Quadrant III (lll): Both x and y values are negative (-, -).
- Quadrant IV (lV): x values are positive and y values are negative (+, -).
The quadrants with negative x-values are Quadrant II (ll) and Quadrant III (lll).
Therefore, the correct answer is ll and lll.