Answer:
-4
Step-by-step explanation:
What I would do to make it easier is to put them into exponential form. I would do 3 since goes with 1/9,81, and 27.
3^-2a-2=3^4a+4*3^6-3a
Now we can treat it like a normal equation
-2a-2=3^4a+4+6-2a
-2a-2=a+10
-3a=12
a=-4
