Пошаговое объяснение:
1)
3х-11=5(3-2х)
3x - 11 = 15 - 10x
3x + 10x = 15 + 11
13x = 26
x = 26 : 13
x = 2
2)
х+2=1-4х
x + 4x = 1 - 2
5x = -1
x = -1 : 5
x = -0,2
3)
7(х+6)=6х+6
7x + 42 = 6x + 6
7x - 6x = 6 - 42
x = -36
Пошаговое объяснение:
1)
3х-11=5(3-2х)
3x - 11 = 15 - 10x
3x + 10x = 15 + 11
13x = 26
x = 26 : 13
x = 2
2)
х+2=1-4х
x + 4x = 1 - 2
5x = -1
x = -1 : 5
x = -0,2
3)
7(х+6)=6х+6
7x + 42 = 6x + 6
7x - 6x = 6 - 42
x = -36