Ответ:

Объяснение:

4/7( 1/2x - 2/3) =2x+13/3

4/14х - 8/21 = 2х + 4 1/3

4/14х - 2х = 4 1/3 + 8/21

4/14х - 1 14/14х = 4 1/3 + 8/21

-1 10/14х = 4 7/21 + 8/21

-1 5/7х = 4 15/21

-12/7х = 4 5/7

х = 4 5/7 : (-12/7)

х = 33/7 * (-7/12)

х = -33/12

х = -2 9/12

х = -2 3/4