The number of video games Billy bought is 3.
The initial balance on the gift card is $150. After purchasing the video games, the balance becomes $45. The total total amount he spent on the video games is $105 ($150 - $45). This can be represented with this equation:
$150 - $45 = $105
If a video game costs $35 and the number of video games he bought is represented with x, the total cost of the video game becomes $35x. The above equation becomes: $150 - $45 = $35x
($150 - $45) / $35 = x
105 / 35
x = 3
A similar question was answered here: https://brainly.com/question/14793248
