Answer:
The system has unique solution.
Explanation:
Since the system has two unknow variables and two equations, we can resolve for one variable in the first equation and replace in the second equation.
We have the system

We resolve for x in the first equation and obtain

Now, replace in the second equation the value of x,

Now, replace the value of y in the expression of x:

Then the system has unique solution, (x,y)=(2,2)