# Systems of Linear Equations

### Exercises

#### Exercise 1

Bobby didn't have any cookies, so he started buying two cookies per day. He didn't eat them, only collected them in a box. He used to collect stamps. We don't know why he decided to make the switch to something perishable.

Jen started out with 100 cookies and ate 3 every day. Apparently, she is a collector of calories. Delicious, delicious calories.

After how many days did Bobby and Jen have the same number of cookies?

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