# Tim 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 24 cards left. How many cards did Tim start with?

##### 1 Answer

Nov 1, 2016

Tim had

#### Explanation:

Let the original number of baseball trading cards in Tim's possession be

An equation to arrive at the number will be:

This is because half the collection AFTER adding

Multiply both sides by

Subtract