Question

решите уравнение 2/3x+4/9x=3,2 заранее блогадарен /// (o)(o) (°_°) (_) (_) (_) (_)(_)

Answer 1

2/3x+3/4x=3,2
10/9x=32/10
x=32/10 : 10/9
х=2,88
Ответ : 2,88

Answer 2

To solve the equation 2/3x + 4/9x = 3.2, we can follow these steps:

Step 1: Combine like terms on the left side of the equation. - The left side of the equation has two terms with x, so we can combine them by finding a common denominator. - The common denominator for 3 and 9 is 9. - Multiplying the first term by 3/3 and the second term by 9/9, we get (2/3)(3/3)x + (4/9)(9/9)x = 3.2. - Simplifying, we have (6/9)x + (36/9)x = 3.2.

Step 2: Add the terms on the left side of the equation. - Adding (6/9)x and (36/9)x, we get (6/9 + 36/9)x = 3.2. - Simplifying, we have (42/9)x = 3.2.

Step 3: Solve for x. - To solve for x, we need to isolate it on one side of the equation. - We can do this by multiplying both sides of the equation by the reciprocal of (42/9), which is (9/42). - Multiplying both sides by (9/42), we get ((42/9)x)(9/42) = (3.2)(9/42). - Simplifying, we have x = (3.2)(9/42)/(42/9).

Now, let's calculate the value of x using the given equation.

Calculation:

- x = (3.2)(9/42)/(42/9) - x = (3.2)(9/42) * (9/42) - x = 0.6857142857142857

Therefore, the solution to the equation 2/3x + 4/9x = 3.2 is x = 0.6857 (rounded to four decimal places).

Please note that the calculation was performed using the given equation, and the solution is based on that.