Question

0, 2/x+з=0,7/х-2 помогите​

Answer 1

Ответ:

Пошаговое объяснение:

0, 2/(x+3)=0,7/(х-2 )

0,7*(x + 3) = 0,2*(x - 2)

0,7x + 2,1 = 0,2x - 0,4

0,7x - 0,2x = -0,4 - 2,1

0,5x = -2,5

x = -2,5 : 0,5

x = -5

Answer 2

Solving the Equation 0 = (2/x) - (0.7/(x-2))

To solve the equation 0 = (2/x) - (0.7/(x-2)), we can start by finding a common denominator and then simplifying the equation.

First, let's find the common denominator for the fractions on the right-hand side of the equation.

The common denominator for x and (x-2) is x(x-2).

Now, we can rewrite the equation with the common denominator:

0 = (2(x-2)/(x(x-2))) - (0.7x/(x(x-2)))

Simplify the equation further:

0 = (2x - 4 - 0.7x)/(x(x-2))

Combine like terms in the numerator:

0 = (1.3x - 4)/(x(x-2))

Now, we have the equation in a simplified form.

Finding the Solution

To find the solution for the equation, we can set the numerator equal to 0 and solve for x:

1.3x - 4 = 0 1.3x = 4 x = 4/1.3 x ≈ 3.0769

So, the solution for the equation 0 = (2/x) - (0.7/(x-2)) is approximately x ≈ 3.0769.

This solution satisfies the given equation.