First you have to figure out how much a video game costs and how much a used one costs Then you plug in the costs of the video games into Janets equation 120=3x+y (x= video games and y=used video games) Then you subtract the cost of video games from 120 and then divide that answer by the cost of used video games and that should give you how many used video games she can get
Absolute value is always positive because its talking about the real distance or steps to zero and even when you at a negative number it takes real steps to get back to zero.
