3(x-2)+4=5x-4 -6(x-1)-2(x+2)=4

Question

3(x-2)+4=5x-4

-6(x-1)-2(x+2)=4

Answer 1

3(х - 2) + 4 = 5х - 4                  - 6(х - 1) - 2(х + 2) = 4

3х - 6 + 4 = 5х - 4                    - 6х + 6 - 2х - 4 = 4

3х - 5х = - 4 + 6 - 4                  - 8х = 4 - 6 + 4

- 2х = - 2                                  - 8х = 2

х = - 2 : (-2)                                х = 2 : (- 8)

х = 1                                           х = - 0,25 

Проверка:                                  Проверка:

3(1 - 2) + 4 = 5*1 - 4                  - 6(- 0,25 - 1) - 2(- 0,25 + 2) = 4

-3 + 4 = 5 - 4                              7,5 - 3,5 = 4

1 = 1                                           4 = 4

Answer 2

3х-6+4=5х-4
-2х=-2
Х=1

2) -6х+6-2х-4=4
-8х=2
Х=-0.25