|3u+12|=3

Lösung

∣ 3 u + 12 ∣ = 3

u = - 5 or u = - 3

Schritte zur Lösung

∣ 3 u + 12 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 u + 12 = - 3 or 3 u + 12 = 3

3 u + 12 = - 3 or 3 u + 12 = 3

u = - 5 or u = - 3

- ∣ 3 + x ∣ = - 1

3 ∣ x + 4 ∣ + 7 = - 5

2 ∣ x + 1 ∣ - 5 = 5

4 ∣ x - 5 ∣ - 8 = 0

∣ 5 - 2 x ∣ + 10 = 6