Becca, Smendrick, and PJ have collections of Magic Cards.  There is a total of 341 cards.  Becca has 12 more than Smendrick, and Smendrick has 3 times the amount of cards that PJ has.  How many cards does Becca have?
Let x represent the number of cards PJ has
Smendrick:3x
Becca:3x+12
Total:x+3x+3x+12=341
7x+12=341
7x=329
x=<<47=47>>47 cards
Becca:3(47)+12=153 cards
#### 153