Answer:
Jason originally had 87 baseball trading cards.
Explanation:
Let the number of cards Jason originally had be, x.
It is provided that he bought 5 new baseball trading cards to add to his new collection.
So, the new number of cards is, x + 5.
It is also provided that, his dog ate half of the cards.
Now Jason has 46 cards left.
This implies that:
Solve the above equation of x as follows:
Thus, Jason originally had 87 baseball trading cards.