A worker has job offers from two companies. The information below summarizes the job offer from each company. Company A:

Starting salary of $31,000
Raise of $3000 each year
Company B:

Starting salary of $38,000
Raise of $2000 each year

Part A: Write an equation in terms of n years that can be used to determine the number of years when the salaries would be the same for both companies.

Part B: Use the equation you wrote in part A to determine the number of years it would take for the salaries to be the same for both companies. Use mathematics to support your answer.