Michelle has a total debt of $28. She is trying to pay back $2 each week for the next 3 weeks. If Michelle is successful, which amount will represent the change in the amount of her debt?
If Michelle pays back $2 each week for the next 3 weeks, she will have paid a total of $2/week * 3 weeks = $<<2*3=6>>6.
The change in the amount of her debt will be $28 debt - $6 paid = $<<28-6=22>>22. Answer: \boxed{22}.