Решите плез с решениями 5x+1=3x+1 6x-1=11 x-1=7(x-1) x-2=1+4x 5x+5=5(x-1)

5x + 1 = 3x + 1
5x-3x= 1-1
2x = 0
x = 0

6x - 1 = 11
6x= 11+1
6x= 12
х = 12÷6
x = 2.

x - 1 = 7(x-1)
x - 1 = 7x - 7
x - 7x = -7 + 1
- 6 x = - 6
x = -6÷(-6)
x = 1.

x - 2 = 1+4x
x - 4x = 1 + 2
- 3 x = 3
x = 3 ÷ (-3)
x = -1.

5x+5 = 5(x-1)
5x + 5 = 5 x - 5
5 x - 5x = - 5 - 5
0 = - 5 - 5
0 = -10
Утверждение ложно для любого значения х