Question

Write equation about total terms

Answer 1

Define on variables:
x = # of student tickets sold
y = # of adult tickets sold

Equation about total items:

`x+y=22`

Equation about total price:

`4x+6y = 108`

Solve the system:

`x = 22-y`

`4(22-y)+6y=108`

`88-4y+6y=108`

`88+2y=108`

`2y=20`

`y = 10`

Plug that into the first equation to get:

`x+10=22`

`x = 12`

So, your answer is: 12 student tickets were sold, and 10 adult tickets were sold.