I feel that I'm taking too long to do simple Algebra I/II equations.

Example: $\displaystyle 3(2x-2)-4(x+6)=3x+8+x$

This equation took me a little under 3 minutes and this one was easy. I need to figure this because I run out time during tests. This invariable makes me panic and essentially my brain shuts down--I'm done. I practice equations and anything that I need help with for about two to three hours a day. Someone told me that I'm spending too much time studying, I don't see how it's possible to study too much.

Moving on... any tips or opinions on how I can speed up my solving process would be appreciated.

Thanks