Another problem I just crossed. Going to be last for tonight, I need to rest.

$\displaystyle 3r-3/r = 7/9$ Okay, he is what I've done.

Divided off the r and got $\displaystyle 3-3=7/9$

I multiplied both sides of the equation by the reciprocal $\displaystyle 9/7$

Now here's where I'm lost.