Answer:
A. One line
Step-by-step explanation:
Let rearrange the system of equations into explicit forms:
[tex]y = -2\cdot x - 5[/tex]
[tex]6\cdot x + 3\cdot y = -15[/tex]
[tex]3\cdot y = -6\cdot x - 15[/tex]
[tex]y = -2\cdot x - 5[/tex]
The second equation is identical to the first one, which means that there is just one line.
