Question

5(х+3)=7хрешить хре уравнение​

Answer 1

Ответ:

х=7,5

Пошаговое объяснение:

5(х+3)=7х

Раскроем скобки:

5х+15=7х

Перенесём переменную 7х в левую часть, а постоянную 15 - в правую часть, при этом знак меняем на противоположный:

5х-7х=-15

Приведём подобные слагаемые:

-2х=-15

х=-15:(-2)

х=7,5

Answer 2

To solve the equation 5(x + 3) = 7x, we will simplify and solve for x. Let's go step by step:

1. Distribute the 5 on the left side of the equation: 5x + 15 = 7x

2. Now, let's isolate the terms with x on one side. We can do this by subtracting 5x from both sides: 15 = 7x - 5x

3. Combine like terms on the right side: 15 = 2x

4. To isolate x, we need to get rid of the coefficient 2. We can do this by dividing both sides of the equation by 2: 15/2 = 2x/2

5. Simplify the equation: 7.5 = x

6. Therefore, the solution to the equation 5(x + 3) = 7x is x = 7.5.