The cost of a video game can be modeled by the question C=5x-2. The number of games sold can be modeled by the equation N=8x+5. Write a model for the revenue from the sale of the games.

Respuesta :

5x - 2 = 8x + 5.
-2 = -5x + 8x + 5
-2 = 3x +5
-7 = 3x

-7/3 = -2.3