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There are some chickens and rabbits. They have 88 heads and 244 feet. How many chickens and rabbits are there?
Chickens and rabbits in the same cage: chicken head+rabbit head = total number of heads.

Chicken× 2+rabbit× 4 = total number of feet

If there are x chickens, there are 88-x rabbits.

2x+4(88-x)=244。

X=54 (only) 88-x=34 (only) is used to solve the equation.

Answer: There are 54 chickens and 34 rabbits.

or

Solve the problem of x rabbit

Rabbit feet+chicken feet =244.

4x+2(88-x)=244

4x+ 176-2x=244

2x=68

x=34

Chicken: 88-34=54

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