02 Sep '09 01:011 edit

I have a question on my homework that I have no idea how to solve. Speedy help would be appreciated.

Where do the lines Y=ax+b and Y=cx+d cross, assuming that a, b, c, and d are integers and a is not equal to c?

I know how to solve it when a,b,c, and d are integers, but here I'm lost. If you solve it the same way you get that x=(d-b)/(a-c) and how do you get Y?

Where do the lines Y=ax+b and Y=cx+d cross, assuming that a, b, c, and d are integers and a is not equal to c?

I know how to solve it when a,b,c, and d are integers, but here I'm lost. If you solve it the same way you get that x=(d-b)/(a-c) and how do you get Y?