Question 113232
To set up this word problem,it's good to start writing out what we know: 
We know George has two investments (let's call them x & y), one at 6% and the other at 8%.
The two investments yield a total of $185.60 in annual interest.
So, 0.06x+0.08y=185.60
Next: 
We know the amount invested at 8% is $320 less than twice the amount invested at 6% which means: y=2x-320. 
So that leaves us with: 0.06x+0.08y=185.60 and y=2x-320
Use the substitution method to continue solving. I hope this helps you out!