Hej!
a)
|x - 1| = 6
x - 1 = 6 lub x - 1 = -6
x = 6 + 1 lub x = -6 + 1
x = 7 lub x = -5
b)
|x + 5| = 4
x + 5 = 4 lub x + 5 = -4
x = 4 - 5 lub x = -4 - 5
x = -1 lub x = -9
c)
|4x - 1| = 3
4x - 1 = 3 lub 4x - 1 = -3
4x = 3 + 1 lub 4x = -3 + 1
4x = 4 lub 4x = -2
x = 1 lub x = -0,5
d)
|23x + 2| = 1
23x + 2 = 1 lub 23x + 2 = -1
23x = 1 - 2 lub 23x = -1 - 2
23x = -1 lub 23x = -3
x = -1/23 lub x = -3/23
e)
|35x - 6| = 3
35x - 6 = 3 lub 35x - 6 = -3
35x = 3 + 6 lub 35x = -3 + 6
35x = 9 lub 35x = 3
x = 9/35 lub x = 3/35
Pozdrawiam! - Julka
