Final answer:
To find the total cost of the game, set up the equation 2/3x = $6 and solve for x. The game costs $9.
Step-by-step explanation:
To find the total cost of the game, we need to determine the full amount which is equivalent to one unit. Since Charlie has saved $6, which is two-thirds of the total cost, we can set up the equation:
2/3x = $6
To solve for x, we can multiply both sides of the equation by the reciprocal of 2/3, which is 3/2:
(3/2) * (2/3)x = (3/2) * ($6)
After canceling out the common factors, we are left with the equation:
x = $9
Therefore, the game costs $9.