Question

8,4(у-17,9)=4,2 (это икс)

Answer 1

Ответ:

Пошаговое объяснение:

8.4(y - 17.9) = 4.2x

8.4y - 150.36 = 4.2x

Делим все части уравнения на 4.2.

2y - 35.8 = x

2y - x = 35.8

Уравнение имеет бесконечное множество решений.

Answer 2

To solve the equation, we need to find the value of "у" when the expression 8.4(у-17.9) is equal to 4.2. Let's proceed step by step:

1. Start with the given equation: 8.4(у - 17.9) = 4.2

2. First, we'll distribute the 8.4 to the terms inside the parentheses: 8.4 * у - 8.4 * 17.9 = 4.2

3. Simplify the equation further: 8.4у - 151.56 = 4.2

4. Now, let's isolate "у" on one side of the equation. To do this, we'll move the constant term (-151.56) to the other side by adding it to both sides: 8.4у = 4.2 + 151.56

5. Combine the numbers on the right side: 8.4у = 155.76

6. To solve for "у," divide both sides by 8.4: у = 155.76 / 8.4

7. Now, calculate the value of "у": у = 18.533333...

Rounded to a reasonable number of decimal places, "у" is approximately 18.53.

So, the solution to the equation is "у ≈ 18.53."