SOLUTION: graph 2(x+4)=8

     2(x+4)=8
       2x+8=8
         2x=0
          x=0

Make a table of values.  Since there is no y in the equation,
you can use any number for y:

                 x|y 
                 0|4
                 0|-2
                 0|7
                 0|-8

Wow all 4 of those points are on the y-axis:



So the graph must be the y axis itself.



That's the answer.  Just darken up the y-axis.

Edwin