What is the solution set of the following equation? -5x+x+9=-4+12

Can any one me with the answers to these questions asap?

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?

Write the equations in logarithmic form 9^4=6,561