Let's assume
Ms.Meyer used to bring x students for the cost $9 per student
so, total cost = 9x
now, we are given
For ticket cost $6 , she can brings 47 more students
so, total students =x+47
total cost =6*(x+47)
now, we are given total costs are same for both
we get
[tex]9x=6(x+47)[/tex]
we can solve for x
[tex]9x=6x+282[/tex]
Subtract both sides by 6x
[tex]9x-6x=6x+282-6x[/tex]
[tex]3x=282[/tex]
Divide both sides by 3
[tex]\frac{3x}{3}=\frac{282}{3}[/tex]
[tex]x=94[/tex]
so, Ms. Meyer brings 94 students to theatre.........Answer