In a class, there were 39 pupils.$$\frac{4}{5}$$ of the boys and $$\frac{2}{3}$$ of the girls wore glasses. 9 pupils did not wear glasses. <hr> How many more boys than girls were there in the class? <br> <input min="0" type="number" id ="imp6pg064q5_1" class="lineinput" placeholder="?" />