if F(x)=8 then that changes the equation to 8=x/2+5 meaning you need to make sure x/2+5 comes out to 8. What does five need to be added too to get 8? 3. So then you figure out what needs to be divided by two to get 3. Multiple 2 times 3 and you get 6. Making the equation
They would need to by 3 more tickets. 214 divided by 9 = 23 with the remainder of 3. So I divided 217 by 9 = 23. I added 3 to 214 which got a whole answer 23.
