Answer: (-8, 8).
Step-by-step explanation:
- Start with the first equation:
- y = -x
- Substitute this expression for y in the second equation:
- y = -3x - 16-x = -3x - 16
- Add 3x to both sides:
- 2x = -16
- Divide both sides by 2:
- x = -8
- Substitute this value of x into either equation to find y:
- y = -x = -(-8) = 8