Jerry had 45 action figures on a shelf in his room. Later he added 7 more action figures to the shelf and removed some of the old ones. If there are 34 action figures on his shelf now How many action figures did he remove from the shelf?
Jerry had 45 action figures on a shelf in his room. 

This is our starting point. We're given the number of action figures on the shelf, which is 45. 

Later he added 7 more action figures to the shelf and removed some of the old ones. 

We're told that Jerry added 7 more action figures to the shelf, and that he removed some of the old ones. This doesn't give us a specific number, but it does tell us that the number of action figures on the shelf has changed. 

If there are 34 action figures on his shelf now

We're told that the current number of action figures on the shelf is 34. 

How many action figures did he remove from the shelf?

This is what we're trying to figure out. 

We can set up an equation to solve this problem. We know that the original number of action figures on the shelf was 45. We know that Jerry added 7 more action figures to the shelf. And we know that the current number of action figures on the shelf is 34. 

We can set up the equation like this: 

45 + 7 - x = 34

This equation says that