Answer: Infinitely many solutions
Step-by-step explanation:
Let's take the first equation.
3y + 6x = 12
Now take common,
3( y + 2x ) = 12
So, y + 2x = 4
Lets take 2nd equation
4y + 8x = 16
Take common,
4(y + 2x) = 16
So, y + 2x = 4.
Two lines with same equation have infinitely many solutions. These two equations are the same so there are infinitely many solutions.