Basically, what we do is add the fractions on the left hand side and then multiply by '5' on both sides to get rid of the denominator. Next, we leave 'y' on the left hand side (since you are solving for 'y') and move all the other variables and numbers to the right hand side. 

If you are not satisfied with the number of solution steps displayed (either too many steps or too few), click on the Options button to adjust the number of steps to be shown. In your case you can select 'Show: a lot of steps' and 'Apply'. This way you will get the following, more step by step, solution (click here to see the bellow):

You can obtain an explanation for any step by clicking on it. Please note that you cannot click on the very first expression, which is the original problem. For example: