A total of 309 tickets were sold for the school play. they were either adults tickets or students tickets. the number of student tickets sold was two times the number of adult tickets sold. how many adult tickets were sold?

x, student tickets

y, adult tickets

x+y=306

x=2y, exact translation of the description into a system of equations. Solve for the value of y.

The process can be, solve for x in terms of y, already seen as THE second equation of the system; substitute into the other equation, and solve the result for y, and compute.

(2y)+y=306

3y=306

y=102 adult tickets sold.

Step-by-step explanation:

-18

step-by-step explanation:

because mean value defines that total sum value over total number of set