How many do I have

I have 53 Heads and 172 feet. How many chckens and Rabbits do I have.
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I have 53 Heads and 172 feet. How many chckens and Rabbits do I have.

x chickens
2x chicken feet

(53-x) rabbits
4(53-x) = (212 - 4x) rabbit feet

2x + (212 - 4x) = 172 feet
-2x = -40
x = 20

heads                                     feet
20 chickens                              40 chicken feet
33 rabbits          (212 - 4(20)) = 132 rabbit feet
-----------------------------------------------------------------
53                                           172
by Level 11 User (78.4k points)

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