Okay; I suppose you haven't been introduced to matrices yet, or to specific things to do with them; I wouldn't expect you to be using those ideas anyway.
Please try what I suggested. If, say, the given equations were 2x + 3y = 4 and 3x + 1y = 2, where (2)(1) - (3)(3) = -7 which is not 0, how would you eliminate the coefficient of x in the second equation? And what would you do differently if the first 2 were replaced with 0?
Then do the same things with unspecified parameters, as given.
The more though you show, the easier it will be to help you.