20 points!! Mateo earns a yearly salary of $40,000. Rico earns a yearly salary of $51,000. Mateo will receive a salary increase of $3,500 per year, and Rico will receive a salary increase of $2,800 per year. Which equation can be used to find n, the number of years it will take Mateo to earn the same salary as Rico?

40,000n + 3,500n = 51,000n + 2,800n

40,000 + 3,500n = 51,000n + 2,800

40,000n + 3,500 = 51,000n + 2,800

40,000 + 3,500n = 51,000 + 2,800n