Question

3. (5 баллов) Решите задачу с помощью уравнения: «У Аскара в четыре раза больше марок, чем у Алдияра. Аскар подарил Алдияру на день рождения 28 марок. Теперь марок у Алдияра стало в 2 раза больше. Сколько марок было у каждого мальчика первоначально?»

Answer 1

Ответ:

Пошаговое объяснение:

(4x - 28)*2 = x + 28

8x - 56 = x + 28

8x - x = 28 + 56

7x = 84

x = 84 : 7

x = 12 марок было у  Алдияра первоначально

12*4=48  марок было у  Аскара первоначально

Answer 2

To solve this problem, we can set up an equation based on the given information. Let's assume that the initial number of marbles that Aldiyar had is represented by 'x'. According to the problem, Askar had four times as many marbles as Aldiyar, so the number of marbles Askar had initially is 4x.

We are also given that Askar gave Aldiyar 28 marbles on his birthday, and after that, Aldiyar had twice as many marbles as before. This means that the new number of marbles Aldiyar has is 2x.

To find the initial number of marbles for each boy, we can set up the following equation:

4x - 28 = 2x

Now, let's solve this equation to find the value of 'x':

4x - 28 = 2x 2x = 28 x = 14

So, initially, Aldiyar had 14 marbles, and Askar had 4 times as many, which is 56 marbles.

Therefore, initially, Aldiyar had 14 marbles and Askar had 56 marbles.