Question

8 - 2х = 3 целых 7/9
решите пожалуйста

Answer 1

8 - 2х = 3 7/9,

2х = 8 - 3 7/9,

2х = 7 9/9 - 3 7/9,

2х = 4 2/9,

х = 4 2/9 : 2,

х = 38/9 * 1/2,

х = 38/18,

х = 19/9,

х = 2 1/9

Answer 2

8 - 2х = 3$\frac{7}{9}$

8 - 2х = $\frac{34}{9}$ | * 9

8 * 9 - 2х * 9 = 34

72 - 18x = 34

-18x = 34 - 72

-18x = 34 - 72

-18x = - 38 | : (-18)

x= $\frac{38}{18}$ = $\frac{19}{9}$

Ответ: x= $\frac{19}{9}$