l 5x + 6 l = 4 tentukan nilai x tolong dibantu

Bab : Nilai Mutlak
Kelas : X SMA

I5x + 6I = 4
5x + 6 = 4 atau -4

Jika +4 :

5x + 6 = 4
5x = 4 - 6
5x = -2
x = -2/5

Jika -4 :

5x + 6 = -4
5x = -4 - 6
5x = -10
x = -2

Hp = { -2/5 , -2 }