<PRE><B>Question 438549</B>
For this problem i just need to know the last equation.

A minor league baseball park has 7000 seats. Box seats cost $6,grandstand seats cost $4, and bleachers seats cost $2. When all seats are sold, the revenue is $26400. If the number of box seats is one-third the number of bleachers seats, how many seats of each type are there?
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What is the last equation?

Seat Equation: x + y + z = 7000
Value Equation:6x + 4y +2z = 26400
Quantity Eq:: x = (1/3)z
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Cheers,
Stan H.
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