x/8

Equation: x/ 10+30=x/8.

Topic explanation: There is a sum of money planned to be distributed to 10 people. Because two people are not here, each person can get an extra $30 and find out the total amount of money.

Known: Total amount: x

Each 10 person? money

All eight people? money

2.72 Liu Liu is divided into two parts. The sliding times of less parts are 7 times and 5 times that of more parts. The document number for the small share.

Solution: Let the number of marbles in fewer copies be X and the number of marbles in more copies be (72-X).

7x = 5 (72x)

X=30

There are 30 marbles in the small box.

Answer: There.

be

30

marble

exist

this

smaller

Group.