The Mathematical Equation of Friendship

My dear Twilight Sparkle,

Yeah, I think I got that whole hipster thing wrong. I think I better stop. Luna said I'd make for a good gangsta... but I don't know about that. So how's that friend-making thingy coming along? To answer your question, I didn't assign you on the mission to make friends because I thought it would help you. I've always viewed it more as a scientific experiment. In simple terms, I was testing to see if the creation of friendships would help strengthen bonds in order to multiply the effect of the Elements of Harmony. If you'd like to get more advanced, here is the equation that I have created in which I think applies to this:

6+7(4)+y(2) P+8[9+x(y+3)]
___________ + _____________

8/7( i +86)+34 7(4+2x) - 20%

So far, all the results using the equation have been screwed up due to Pinkie Pie's randomness. And of course, Applejack is an imaginary number, because we all know that Applejack can only be a main character in someone's imagination. Eh, maybe I'll give her the "Best Background Pony" award when the next Summer Sun Celebration rolls around.

Yours maybe,
Princess Celestia