Answer and you worlds smartiest.

Answer:
A.
Step-by-step explanation:
By using elimination, you get 0 = 1, which isn't a solution.
Let me know if this helped, brainly is appreciated <3
Answer:
The first answer choice (3x + y = 8 and 3x + y = 9)
Step-by-step explanation:
You can't have 3x + y equal 8 and 9.
It must only be 1 value.