Tim's phone service charges $24.11 plus an additional $0.15 for each text message sent per month. If Tim's phone bill was $27.86, which equation could be used to find how many text messages, x, Tim sent last month?

A. $0.15x - $24.11 = $27.86
B. $0.15x + $24.11 = $27.86
C. $24.11x + $0.15 = $27.86
D. $24.11x - $0.15 = $27.86