Ответ:

x=-3

Пошаговое объяснение:

[tex] \frac{x - 1}{2} - \frac{2x}{3} = \frac{x + 3}{4} \\ \frac{6(x - 1)}{12} - \frac{8x}{12} = \frac{3(x + 3)}{12} \\ 6(x - 1) - 8x = 3(x + 3) \\ 6x - 6 - 8x = 3x + 9 \\ 6x - 8x - 3x = 9 + 6 \\ - 5x = 15 \\ - x = 3 \\ x = - 3 \\ \frac{ - 3 - 1}{2} - \frac{2 \times ( - 3)}{3} = \frac{ - 3 + 3}{4} \\ - 2 - ( - 2) = 0 \\ - 2 + 2 = 0 \\ 0 = 0 [/tex]

Пошаговое объяснение:

(х-1)/2 - 2х/3 = (х+3)/4 | * 12

6 * (х - 1) - 4 * 2х = 3 * (х + 3)

6х - 6 - 8х = 3х + 9

-2х - 6 = 3х + 9

-2х - 3х = 9 + 6

-5х = 15

х = 15 : (-5)

х = -3