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Assuming that all 15 are chickens, then there are 2x15=30 feet, which is 48-30=18 fewer than the actual number.
Then replace the chickens one by one with rabbits, and each one can have 4-2=2 more legs.
To replenish 18 feet, you need to change 18 2 = 9 times, that is, the rabbit has 9.
Chickens are 15-9=6.
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Chicken has 2 feet and rabbit has 4 legs, so 2 chickens + four rabbits = 48Chicken + Rabbit = 15
So 9 rabbits and 6 chickens.
You know there's such a thing as an equation, so why don't you let it go? Didn't you learn, even if you didn't, you have to learn it in the future, it's better to accept it early, this doesn't need an equation, this topic is ahead of its time.
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Let all rabbits have 15*4=60 legs.
60-48 = 12 = extra feet of the rabbit, and 12 4 = 3 = more rabbits than chickens.
From this, it can be seen that chickens = (15-3) 2 = 6. Rabbits = 15-6 = 9 pcs. In addition to this method, you can also set all chickens first, then it will be calculated that there are 3 fewer chickens than rabbits, and the result is the same.
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If all 15 are rabbits.
There are 60 feet in total.
The extra 12 legs are the number of chickens' feet.
So the number of chickens is (15, 4 - 48), 2 = 6, then the number of rabbits = 15-6=9
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18 2=9 Number of rabbits.
15-9=6 number of chickens.
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Rabbit 9 chicken 64 * 9 + 2 * 6 = 48
Just look at it, you don't know it in any way.
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There are x and y rabbits with chickens and hail and rabbits respectively.
Then there are equations. x+y=48
4y-2x=24
The solution is x=28 and y=20
So there are 28 chickens and 20 rabbits, respectively.
Pure hands stupid and wanton fighting,
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There are two feet of the chicken's head pants, which can be set to 2x feet by multiplying the number of chickens; The number of rabbits is four, multiplied by the number of rabbits to make 4y feet. The problem holder can obtain the system of equations x+y=60 4x-2y=90 to solve the equation x=35, y=25
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Solution: Set up x chickens to dress up and rabbits to y.
x+y=30
2x+4y=104
Solution: Hunger and lack of land x = 8
y=22
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The number of chickens trembling chain has only sales:
5 pcs. Rabbits have: 12-5 = 7 Eggplant Sun.
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