Question

Nadeen is at an arcade. She started out with 18 tokens, and each game costs 3 tokens to play. Suppose x is the number of games Nadeen has already played.

Answer 1

x=6 because 6 times 3 equals 18

Answer 2

The expression
`18-3x` describe the number of tokens Nadeen has left.

Explanation:

Consider the provided information

Nadeen is at an arcade. She started with 18 tokens. Each game costs 3 tokens.

The cost of each game is 3 tokens

Suppose x is the number of games played by Nadeen

Thus, the cost of x games is 3x tokens

it is given that Nadeen started with 18 tokens.

So, token left =
`18-3x`

Therefore, the expressions
`18-3x` can be used to describe the number of tokens Nadeen has left.