Need help with this !!!!!

Question

n a certain state, speeding fines are determined by the formula Upper F equals 10 left parenthesis x minus 55 right parenthesis plus 65F=10(x−55)+65 , where F is the cost, in dollars, of the fine if a person is caught driving x miles per hour. Use this formula to determine how fast a person was speeding if the fine comes to $ 265.

Answer 1

265 = 10(x-55)+65

200 = 10(x-55)

20 = x - 55

x = 75