|u|=9

Lösung

∣ u ∣ = 9

u = - 9 or u = 9

Schritte zur Lösung

∣ u ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

u = - 9 or u = 9

5 + ∣ a ∣ = 17

∣ u ∣ = c

- 3 - 5 ∣ 8 - 2 x ∣ = - 63

∣ 9 - 5 x ∣ = 9

∣ 9 - 5 x ∣ = 6