Chicken and rabbit have 100 legs. If you change chicken into rabbit, rabbit into chicken has 92 legs. How many chickens and rabbits are there?

Chicken and rabbit have 100 legs. If you change chicken into rabbit, rabbit into chicken has 92 legs. How many chickens and rabbits are there?

Chickens: [100 - (100-92) / (4-2) × 4] / (4 + 2), = 84 △ 6, = 14 (chickens); rabbits: 14 + (100-92) / (4-2) = 18 (rabbits); answer: there are 14 chickens and 18 rabbits

There are 100 feet for chickens and rabbits. If chickens are replaced with rabbits and rabbits are replaced with chickens, there are 92 feet in total, including 〔 chickens and 〕 rabbits

The chicken has x, the rabbit has y
2x+4y=100
4x+2y=92
x=14
y=18

There are 100 chickens and rabbits in total. The number of feet of chickens is 70 less than that of rabbits. How many chickens and rabbits each?
Don't worry about the equation

Solution:
If add 70 chicken feet again, namely have chicken again
70 △ 2 = 35 (pieces)
The number of feet of a chicken is equal to that of a rabbit
4 △ 2 = 2 (Times)
So the number of chickens is twice that of rabbits, and the number of rabbits is
(100 + 70 ﹣ 2) ﹣ 2 + 1 = 45
Chicken is
100-45 = 55