You can add/subtract the fractions and then solve for 'x' as shown in the link here . 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. Quite often, several transformations will be performed within the same step. Use the explanation navigation buttons to step through all of them:

Another way to solve is by switching all the numbers to the right side and keeping the variable on the left side of the equation:

Add the fractions on the right hand side of the equation and multiply by 9 on both sides: