Enter the correct answer in the box. Do not include dollar signs.

Jamie owns a pizza shop in town, and she’s working on paying off equipment expenses. The remaining balance of $6,550 is financed and requires a monthly payment of $275. The shop is doing well, so Jamie can afford to pay an extra $300 each month to speed up paying off the balance.

Write the second equation in a system that Jamie can use to find how many months it will take her to pay off the balance.