Question

(5х-12,4):11=(5-х):5,5

Answer 1

Ответ: х=3,2

Пошаговое объяснение:

(5х-12,4):11=(5-х):5,5

5x/11 - 12,4/11 = 5/5,5 - x/5,5

5x/11 + x/5,5 = 5/5,5 + 12,4/11

Под общий знаменатель

5x/11 + 2x/11 = 10/11+ 12,4/11

7x/11=22,4/11 | *11 (чтобы убрать знаменатель умножаем 1 и 2 дробь на 11)

7х=22,4

х= 3,2

Answer 2

To solve the equation (5x - 12.4) / 11 = (5 - x) / 5.5, you can follow these steps:

1. First, multiply both sides of the equation by 11 and 5.5 to get rid of the denominators:

(5x - 12.4) / 11 * 11 = (5 - x) / 5.5 * 11

This simplifies to:

5x - 12.4 = (5 - x) * 2

2. Next, distribute the 2 on the right side of the equation:

5x - 12.4 = 10 - 2x

3. Now, add 2x to both sides of the equation to isolate the x terms on one side:

5x + 2x - 12.4 = 10

This simplifies to:

7x - 12.4 = 10

4. Add 12.4 to both sides to isolate the 7x term:

7x - 12.4 + 12.4 = 10 + 12.4

This simplifies to:

7x = 22.4

5. Finally, divide both sides by 7 to solve for x:

7x / 7 = 22.4 / 7

x = 3.2

So, the solution to the equation is x = 3.2.