a farmer was on his tractor and drove by some chickens and pigs he counted 30 heads and 84 legs how manny chickens and pigs were there

Question

answer the question by graphing you answer plzzzzz

Answer 1

P+C = 30

4P + 2C = 84

2P + 2C=60

2P = 24

P = 12 pigs

C = 18 chickens