|8x-4|=20

Lösung

∣ 8 x - 4 ∣ = 20

x = - 2 or x = 3

Schritte zur Lösung

∣ 8 x - 4 ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

8 x - 4 = - 20 or 8 x - 4 = 20

8 x - 4 = - 20 or 8 x - 4 = 20

x = - 2 or x = 3

- 18 = 2 a - 2 ∣ 1 - 3 a ∣

3 - 7 ∣ x + 2 ∣ = - 38

∣ x - 2 ∣ + ∣ 2 x + 3 ∣ = 5

∣ 6 x - 5 ∣ = - 4 x

2 - ∣ m ∣ = - 2