⑥ Solution: Let one unknown be x and the other be X+ 1.
X+X+ 1=97
X+X+ 1- 1=97- 1
2X=96
2x \2 = 96 \2
X=48
48+ 1=49
A: One number is 48 and the other is 49.
⑦ Solution: If the rabbit has 4X legs, the chicken has 2X legs.
4X+2x=48
(2+4)x=48
6x=48
6x÷6=48÷6
x=8
A: There are 8 chickens and 8 rabbits in each group.
Solution 8: Suppose Xiaoming is X years old and his mother is 3x years old.
3x-x=24
(3- 1)x=24
2x=24
2×2 = 24×2
X= 12
12+24=36 (years old)
A: Xiaoming 12 years old, and his mother is 36 years old.