China Naming Network - Almanac query - Jaco and Wang Han have a total of 70 math extracurricular books. After Jaco gave Wang Han five books, they had as many books as they did.
Jaco and Wang Han have a total of 70 math extracurricular books. After Jaco gave Wang Han five books, they had as many books as they did.
Solution: Suppose Zhang Bo has X math extracurricular books and Wang Han has 70-x math extracurricular books.
x-5=70-x+5
x-5=75-x
x+x=75+5
2x=80
x = 80 \2
x=40
Wang Han has books =70-x=70-40=30.
A: It turns out that Zhang Bo has 40 math extracurricular books and Wang Han has 30 math extracurricular books.