Pupils at cinema

Alena bought movie tickets for two groups of pupils. The first group purchased 7 tickets for 1st and 5 tickets for 2nd place and she pay 62Kč. For the second group bought 11 tickets for 1st and 4 tickets for 2nd place and pay 82Kč. How much was the ticket for 1st and 2nd place?

Correct result:

a =  6
b =  4

Solution:


7a+5b=62
11a+4b=82

7•a+5•b=62
11•a+4•b=82

7a+5b = 62
11a+4b = 82

a = 6
b = 4

Our linear equations calculator calculates it.



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