Question

Для перевозки 35т угля выделили несколько грузовиков.На каждый грузовик погрузили по 4т угля,после чего осталось перевезти ещё 7т угля. Сколько машин было выделено? Решить с помощью уравнения.

Answer 1

Пусть х - количество выделенных грузовиков. Уравнение:
4 * х + 7 = 35
4х = 35 - 7
4х = 28
х = 28 : 4
х = 7
Ответ: 7 машин было выделено.

Answer 2

Problem Analysis

To solve this problem, we need to determine the number of trucks that were allocated to transport 35 tons of coal, given that each truck was loaded with 4 tons of coal and there were 7 tons of coal remaining to be transported.

Solution

Let's assume the number of trucks allocated is represented by the variable x.

According to the problem statement, each truck was loaded with 4 tons of coal. Therefore, the total amount of coal loaded onto the trucks can be calculated as 4x.

The remaining amount of coal to be transported is given as 7 tons.

We can set up the following equation to represent the problem:

4x + 7 = 35

To solve for x, we can subtract 7 from both sides of the equation:

4x = 35 - 7

Simplifying the right side of the equation:

4x = 28

Finally, we can solve for x by dividing both sides of the equation by 4:

x = 28 / 4

Therefore, the number of trucks allocated to transport 35 tons of coal is 7.

Answer

The number of trucks allocated to transport 35 tons of coal is 7.