Answer:
[tex] \boxed{a = 16}[/tex]
Step-by-step explanation:
[tex]if \: the \: question \: is \to \: 6= \frac{a}{4} +2 \\ 6(4) = \frac{a}{4} (4) + 2(4) \\ 24 = a + 8 \\ 24 - 8 = a \\ \boxed{a = 16}[/tex]