Morgan, Dakota and Taylor showed their work solving the equation 72 + 5x +1= 73. Identify the student with the invalid first step and justify your reasoning.
Morgan
7x + 5x + 1 = 73
12x + 1 = 73
Dakota
7x + 5x + 1 = 73
7x + 6x = 73
Taylor
7x + 5x + 1 = 73
7x + 5x = 72

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?