Question

в первом альбоме было в 4раза больше марок,чем во втором,,Когда во второй альбом положили ещё 18 марок,то в обоих альбомах марок стало поровну Сколько марок было в первом альбоме ? Помогите пожалуйста!

Answer 1

х-марок во втором

4х в первом

4х=х+18

3х=18

х=6

6 марок в первом

Answer 2

Problem Analysis

We are given that the number of stamps in the first album is four times the number of stamps in the second album. When 18 more stamps are added to the second album, the total number of stamps in both albums becomes equal. We need to find the number of stamps in the first album.

Solution

Let's assume the number of stamps in the second album is x. According to the given information, the number of stamps in the first album is four times the number of stamps in the second album, so the number of stamps in the first album is 4x.

When 18 more stamps are added to the second album, the total number of stamps in both albums becomes equal. This can be expressed as:

4x = x + 18

To solve this equation, we can subtract x from both sides:

4x - x = 18

Simplifying the equation, we get:

3x = 18

Dividing both sides by 3, we find:

x = 6

Therefore, the number of stamps in the first album is four times the number of stamps in the second album, which is:

4x = 4 * 6 = 24

So, there are 24 stamps in the first album.

Answer

There are 24 stamps in the first album.