Question

3 x / 4 - x=4 x / 5 + x

Answer 1

Ответ:0,7

Пошаговое объяснение:

3x(5+x)=4x(4-x)

15x+3x^2=16x-4x^2

7x^2-x=0

x(7-x)=0

x=0   7-x=0

x=0  x=7

Answer 2

3x➗4-x=4x➗5+x = $\frac{3}{4} x - x = \frac{4}{5} x + x= -\frac{1}{4} x = \frac{9}{5} x = -\frac{x}{4} =\frac{9x}{5} = -5x=36x=-5x-36x=0 = -41x=0 = x=0$

Answer 3

To solve for x in the equation:

3x/4 - x = 4x/5 + x

First, we need to simplify each side of the equation by combining like terms:

(3x/4 - x) = (-1/4)x (4x/5 + x) = (9/5)x

Substituting these simplifications into the original equation, we get:

(-1/4)x = (9/5)x

Next, we can solve for x by isolating it on one side of the equation. To do this, we can add (1/4)x to both sides of the equation:

(-1/4)x + (1/4)x = (9/5)x + (1/4)x

Simplifying, we get:

0 = (29/20)x

Finally, we can solve for x by dividing both sides of the equation by (29/20):

0 / (29/20) = x

Therefore, x = 0.