1)3(4-х)+1=2(3-х)+6 2)(5-3х)-(7-2х)=-3-2х 3) 2х-19=8-х 4)11 - 6х=31-10​

1)3(4-х)+1=2(3-х)+6

12-3х+1=6-2х+6

13-3х-12+2х=0

-х+1=0

х-1=0

х=1

2)(5-3х)-(7-2х)=-3-2х

5-3х-7+2х=-3-2х

5-3х-7+2х+2х+3=0

х+1=0

х=-1

3) 2х-19=8-х

2х+х=8+19

3х=27

х=9

4)11 - 6х=31-10​

-6х=31-10-11

-6х=10

6х=-10

х=- 10/6

Пошаговое объяснение:

1) 3(4-х)+1=2(3-х)+6

12-3х+1=6-2х+6

-3х+2х=12-12-1

-х= - 1

Х=1

2) (5-3х)-(7-2х)= - 3-2х

5-3х-7+2х= - 3-2х

-3х+2х+2х= - 3+7-5

Х= - 1

3) 2х-19=8-х

2х+х=8+19

3х=27

Х=9

4) 11-6х=31-10

-6х=21-11

-6х=10

Х= - 10/6

Х= - 1 4/6= - 1 2/3