[texhax] query: multiline displays

[Harz Deo]

Hello,

I have several multiline displays that need to be aligned for all but
one line. In essence, the last line in these multiline displays defines the
subscripts in the above lines, they contain multiple equality signs. I
would like the last line to be right justified, so that there is less
emphasis on this line, something like

             Y(i)= x(i) + ...
                 =...
                                i= 1,..n,  j=1,.., ...


Is this possible?

Thanks.

harz.