Shannon sells handmade wallets for $12 each.

yesterday, she sold n wallets. today, she sold 3 less wallets than yesterday.

over the past two days, she earned a total of $396.

drag and drop terms and an operation to create an equation that models the situation. then, solve for n, the number of wallets shannon sold yesterday.

15
12n + 3
+
396
396
3n
n - 3
n - 3
n + 3
12n