11|x-9|=121

Lösung

11 ∣ x - 9 ∣ = 121

x = - 2 or x = 20

Schritte zur Lösung

11 ∣ x - 9 ∣ = 121

Teile beide Seiten durch

11

∣ x - 9 ∣ = 11

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x - 9 = - 11 or x - 9 = 11

x - 9 = - 11 or x - 9 = 11

x = - 2 or x = 20

∣ s - 6 ∣ = 0

3 x - 6 = ∣ 2 x + 5 ∣ - 1

∣ 7 x + 4 ∣ = - 32

∣ x - 7 ∣ = 84

∣ 5 d ∣ = 15