Forrest bought $3k$ boxes of chocolates. Each box contained 8 chocolates. After eating 2 boxes of chocolates, he had 200 chocolates left. What is the value of $k$? Ans: ___

1. Formulate an equation for the number of chocolates left

Number of boxes left = $3k - 2$
Total chocolates left = $(3k - 2) \times 8$
$(3k - 2) \times 8 = 200$

2. Solve the equation for $k$

$3k - 2 = \frac{200}{8}$
$3k - 2 = 25$
$3k = 27$
$k = 9$