FWIW guys...math is something I've struggled with my whole life. Sure, I can do the basic stuff...but when algebra hit in school, I hit a wall. I could literally feel both sides of my brain fighting back and forth...one side saying "but the letter X just represents a #", the other side saying "but the letter X isn't a number!"
I can now do this type of math, but let me just say for the record....I HATE IT! I still find myself staring at a letter that is supposed to represent a number fighting that same argument in my head.
