Respuesta :

chrysalism
To solve this, it is helpful to set up an equation that reductions and additions of the games. The equation would be:

27 = 1/2v + 3

In this equation, v = the original number of video games. The 1/2 signifies Casey selling his games, and the + 3 shows Casey buying three more.

If we subtract 3 from both sides, we see that 1/2v = 24. Finally, we can multiply each side by 2 to isolate the variable, v, and we get v = 48.

Therefore our final answer is 48 video games.

Hope this is helpful!

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