Question

I have to identify the system of equations, if any for:
-2x-4=1,
12=-6x-3
no solution?
infinitely many solutions?
(0,-1)?
or
(-1,0)?

Answer 1

multiply the first by 3 and you have

-6x-12 = 3
12 = -6x-3

You can see that they are the same line. Plug any value of x into either equation, and you will get the same value for y.