Legs

In the room are four-legged chairs, three-legged stool, and all are sitted with (one) people. I counted all the leg room and there were a total of 39. How many are there chairs, stool and people?

Correct result:

x =  4
y =  3
z =  7

Solution:

39=(4+2)x+(3+2)y z=x+y  x=4;y=3 z=x+y=4+3=739 = (4+2)x+(3+2)y \ \\ z = x+y \ \\ \ \\ x=4; y = 3 \ \\ z = x+y = 4+3 = 7
z=4+3=7z=4+3=7



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