First you multiply both sides by 3 so then it looks like:
3/6 - (3x)/2 = x-5
Then you put anything with variables on one side by adding (3x)/2 and 5 to both sides.
5.5 = x + (3x)/2
5.5 = 2.5 x
Now divide both sides by 2.5 to get the x by itself.
2.2 = x