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If the number of eight dollar child tickets is 17 less than three times the number of $12 adult tickets and the theater took in $584 how many of each tickets were sold

Respuesta :

c = 3a -17
8c + 12a = 584
8(3a -17) +12 a = 584
24a - 136 +12a = 584
36a = 720
a= 20
20 adult tickets were sold
8c + 12(20) = 584
8c +240 =584
8c = 344
c = 43
43 childrens tickets where sold

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