Пошаговое объяснение:
1. 3х = 15
3х : 3 = 15 : 3
х + 5
2. 4х – 2 = 2х + 6
4х - 2х = 6 + 2
2х = 8
х = 4
3. 11 + 5х = 55 + 3х
5х - 3х = 55 - 11
2х = 44
х = 22
4. − 8х – 17 = 3х – 105
-8х - 3х = -105 + 17
-11х = -88
х = 8
б)4x-2x=6-(-2)
2x=8
x=4
в)2x=44
x=22
г)-11x=-88
x= 8
Пошаговое объяснение:
1. 3х = 15
3х : 3 = 15 : 3
х + 5
2. 4х – 2 = 2х + 6
4х - 2х = 6 + 2
2х = 8
х = 4
3. 11 + 5х = 55 + 3х
5х - 3х = 55 - 11
2х = 44
х = 22
4. − 8х – 17 = 3х – 105
-8х - 3х = -105 + 17
-11х = -88
х = 8