For this case we have the following system of equations:

We multiply the second equation by -5:

Now we add the equations:

We find the value of the variable "y":

THE solution is: (-6, -3)
Answer:
(-6, -3)
3x - 12
3(3x/3 - 12/3)
3(x - 4)
The answer is: 3(x - 4).
-1 you are correct about that answer