# ATC camp

The owner of the campsite offers 79 places in 22 cabins. How many of them are triple and quadruple?

Correct result:

x =  9
y =  13

#### Solution:

x+y=22
3x+4y=79

x+y=22
3•x+4•y=79

x+y = 22
3x+4y = 79

x = 9
y = 13

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