To represent the situation with an equation, we can denote the number of chicken dinners as \( c \) and the number of steak dinners as \( s \).
The cost for the chicken dinners is \( 9c \) (since each chicken dinner costs $9) and the cost for the steak dinners is \( 12s \) (since each steak dinner costs $12).
The total cost of the dinners should not exceed the budget of $288. Therefore, we can write the equation as:
\[ 9c + 12s = 288 \]
This equation captures the total cost of both dinner options in relation to the budget.