Helping a troubled teenager is more difficult when drugs are part of the 'equation'. [=when drugs are involved]
Money didn't 'enter the equation' when he offered to help. [=he didn't expect to be paid for helping]
The southern states will be an important part of the election 'equation'.
(..) Whoa! Look dude, just tell me what's up, 'cause you are crazier than a cannonball tonight. Oh, my goodness! Princess hasn't finished the equation and the zombies are here! I... ...she wants this slumber party to be super fun! And if I did have something to tell you (..)2010 TvShow: Adventure Time Title: Slumber Party Panic Season: 1 Episode 1
(..) about the zombies... Okay, sure. No, Finn. You have to ! Yes, I Royal Promise. Now I must cloister myself in the lab and finish the equation to my decorpsinator serum. You keep the candy folk distracted and ignorant. Can you do that? Yes, Your Highness. (..)2010 TvShow: Adventure Time Title: Slumber Party Panic Season: 1 Episode 1