<human>:  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?
<bot>: Define a variable ** Let x represent the number of cards PJ has
How many cards does Smendrick have? ** Smendrick:3x
How many cards does Becca have? ** Becca:3x+12
Write an equation ** Total:x+3x+3x+12=341
Combine like terms ** 7x+12=341
Subtract 12 ** 7x=329
Divide by 7 ** x=<<47=47>>47 cards
How many cards does Becca have? ** Becca:3(47)+12=153 cards
#### 153