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Tickets to a movie cost 8 dollars for adults and 4 dollars for kids. A large family purchase 24 tickets, and It cost them $168. How many “adult” tickets did they purchase?

1 Answer

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x = number of adult tickets
y= number of kid tickets

8x+ 4y = 168
x+y= 24

8x+ 4y = 168
(x+y= 24) -4

8x+ 4y = 168
-4x - 4y = -96

4x = 72

x = 18

they purchased 18 adult tickets
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