Okay, I think I figured the equation problem. You multiply the 6 with the lowest common denominator which is 6x6. Than you move the -9 to the right side of the =. Thus making it look like this

3x+2x=36+9

than you combine.

5x=45

divide

5x--45

__=__

5----5

thus x=9

I hope I'm right about this one.