Posted by cindy on .
a farmer had 24 animals. some of the animals were chicken and some were dogs. altogether there were 56 legs.
How many of the farmer's animals were chickens and how many were dogs?

math 
PsyDAG,
c + d = 24
Therefore c = 24  d
2c + 4d = 56
Substitute 24d for c in second equation and solve for d. Insert that value into the first equation and solve for c. Check by inserting both values into the second equation. 
Algebra 
Areeb Chaudhry,
3 pigs
21 Chickens 
math 
Uzma,
21 chicken and 3 dogs