Hello. So I am currently having problems with difference equations. The problem is:

$\displaystyle a[n] + 2a[n-1] = n $.

I am not sure where to begin. I'm not asking for an answer I just want to know what I need to do. I have tried looking up tutorials and such but they all seem very complicated. There is another problem I solved somewhat similar and I have attached my work.

Any help would be appreciated.

Thanks,

Jimbo