<PRE><B>Question 444885</B>
first day 5 adult tickets and 8 children tickets were sold=68
second day 3 adult and 5 childrens=42. how much are the adult tickets
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5a + 8c = 68
3a + 5c = 42
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Multiply 1st by 5
Multiply 2nd by 8
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25a + 40c = 5*68
24a + 40c = 8*42
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Subtract:
a = 340-336
a = 4 (# of adult tickets sold)
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Cheers,
Stan H.
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