5454574744

y=-2x+4

12x+6y=24

This equation has an infinite number of solutions, such as x=1, y=2.......etc.

$12x+6y=24\\ 12x-24=-6y\\24-12x=6y\\4-2x=y$

Here s your graph:

https://www.desmos.com/calculator/asolo9iose