Question

Tommy was going to sell all of his Pokemon

cards to buy NBA 2K21. After selling half of
them he changed his mind and bought 17
more Pokemon cards. How many did he start
with if he now has 34?

Answer 1

To find out how many Pokemon cards Tommy started with, we can use algebraic expressions. Tommy started with 34 Pokemon cards.

Step-by-step explanation:

To find out how many Pokemon cards Tommy started with, we can use algebraic expressions.

Let x be the number of cards Tommy started with.

Tommy sold half of his cards, so he had x/2 cards left.

After buying 17 more cards, he now has x/2 + 17 = 34 cards.

To solve for x, we can set up the equation x/2 + 17 = 34.

Subtracting 17 from both sides gives x/2 = 17.

Multiplying both sides by 2 gives x = 34.

Therefore, Tommy started with 34 Pokemon cards.

Answer 2

Answer:
`x = 34`

Step-by-step explanation:

Let x be the original amount of Pokémon cards Tommy had, we know that he sold half of them; this can be express as:

`(x)/(2)`

After this he changed his mind and bought 17 cards, then he has:

`(x)/(2) + 17\\`

We know that he has 34, then we have the equation:

`(x)/(2) + 17 = 34`

Solving for x we have:

`(x)/(2) + 17 = 34`

`(x)/(2) = 34 - 17`

`(x)/(2) = 17`

`x = (2)(17)`

`x = 34`