Solutions; 4X=X+30

3X=30

X= 10

Answer 40 kg of rice and flour 10 kg.

Question 6: Suppose Xiaoli kicked X and Xiaohua kicked 2 X..

Solutions; 2X+X 144

X=48

A Xiaoli kicked 48 Kobanawa 96 Xiaohua.

Question 7: Let Xiaohong's X-year-old mother 6X.

Solutions; 6X-X=25

X=5

Answer Xiaohong is 5 years old and her mother is 30 years old! Support support! Support support!