3|3x-3|=27

Lösung

3 ∣ 3 x - 3 ∣ = 27

x = - 2 or x = 4

Schritte zur Lösung

3 ∣ 3 x - 3 ∣ = 27

Teile beide Seiten durch

3

∣ 3 x - 3 ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x - 3 = - 9 or 3 x - 3 = 9

3 x - 3 = - 9 or 3 x - 3 = 9

x = - 2 or x = 4

∣ X ∣ = 7

7 - ∣ x + 2 ∣ = 1

∣ x - 1 ∣ = x^{2} + 4 x - 5

5 ∣ x + 7 ∣ + 4 = 29

14 - ∣ x - 4 ∣ = 7