[Sethomas]

There are infinite potential values of c and d that could follow the relationship cited as the "problem" itself. It looks like a predicate to linear algebra of some sort, which I played with a little in high school and hated with it got all limit-laden in college electric engineering problems. I don't remember how to do that, I just remember being all like "I DON'T WANT TO FIND THE LIMIT, IT'S GODDAMN ALGEBRA YOU FUCK".

What I mean, is you should be able to solve for something like

10x+5y=9
4y+3z=11
3x+8z=9,453,748,936

But taken individually, none of those equations can actually tell you anything meaninful.