A farmer raises chickens and cows. There are 34 animals in all. The farmer counts 110 legs on these animals. How many of each animal does the farmer have?

Respuesta :

Ccows  = x 
Chickens = y  

x+y = 34 
4x + 2y = 110 or 2x + y = 55 
subtract them 
x = 21 

so, 21 Cows and 13 Chickens, Total = 34 

check: 
Cowlegs = 84 
Chickenlegs = 26 
Total = 110
13 chickens and 21 cows