# Jason bought 9 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 42 cards left. How many cards did Jason start with?

##### 1 Answer

May 29, 2018

75 cards

#### Explanation:

Let x be the number of cards Jason had initially in his collection.

"Jason bought 9 new baseball trading cards to add to his collection"

"His dog ate half of his collection"

"42 cards left"