Question 789818
Keep the left member as it is, because this will keep the slope the same, meaning that the parallel line needed will or can use this member.  


Your constant term will need to change, according to the point that you want included on this new line.


You want x+4y=C, and you plug-in the needed point (8,5) to find what is the value for C.
8+4*5=C
8+20=C
28=C


Your line is then {{{highlight(x+4y=28)}}}
That is in standard form.