Question

Billy has a gift card with a $145 balance. He buys several video games that cost $45 each. After the purchases, his gift card balance is $10. Enter an equation to help find out how many video games Billy bought.

Answer 1

Equation is 145 - 45 x = 10.

Billy bought 3 video games.

Explanation:

As given,

Total Balance in the gift card = $145

The cost of each video game = $45

After purchasing , Balance in Gift card = $10

Now,

Let Total number of video games Billy purchase = x

⇒Cost for video game = 45x

Now,

As we know ,

Total Balance - Purchased Item = Balance left

⇒ 145 - 45 x = 10

∴ The equation is 145 - 45 x = 10

Now,

145 - 10 = 45x

⇒135 = 45x

⇒ x =
`(135)/(45)` = 3

∴ we get

Billy bought 3 video games