Answer:
A
Step-by-step explanation:
Those two lines are the same. If you divide the second equation by 2, you will end up with the first equation. A system of linear equations cannot have two of the same line.
Answer:
C. <em>x</em> is all real numbers.
Step-by-step explanation:
Since the domain is likely infinite, then the domain must be all real numbers so <em>x</em> is all real numbers.
