"Express all integer solutions in terms of n to the equation 840x+354y=6n, where n is natural." please

First I used the highest common factor method to find solutions for 840x+354y=6

solutions are

x=354m-8

y=19-840m

not sure what to do about 6n.

I really need an answer for this one please, anything you have that might help would be greatly appreciated.