How to solve 2x-3(9-2x)=-11

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

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?

The total number of dental clinics total for the last 12 months was recorded