Answer :
[tex]\frac{a}{4}+2=6\ \ \ \ \ |subtract\ 2\ from\ both\ sides\\\\\frac{a}{4}=4\ \ \ \ \ \ |multiply\ both\ sides\ by\ 4\\\\\boxed{a=16}[/tex]
Try this. First subtract 2 from each side. Then multiply each side by 4. I think you'll be thrilled and delighted.