I think it's -2 to -1 is the right answer maybe
but i hope it helps u !!
For every ticket purchased, the cost will increase by $15.00 because x indicates that $15 is the unit rate for each ticket.
multiply both sides of the equation by 3.
2x+3y=9
move variable to the right side and change its sign
2x=9-3y
divide both sides of the equation by 2
x=9/2-3/2y
712/34 divide it then you have your answer :)
