3|x-5|=12

Lösung

3 ∣ x - 5 ∣ = 12

x = 1 or x = 9

Schritte zur Lösung

3 ∣ x - 5 ∣ = 12

Teile beide Seiten durch

3

∣ x - 5 ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x - 5 = - 4 or x - 5 = 4

x - 5 = - 4 or x - 5 = 4

x = 1 or x = 9

∣ 3 x - 6 ∣ = 42

∣ x ∣ + 9 = 15

∣ 5 x - 8 ∣ - 15 = - 9

- 6 = - 2 ∣ g ∣

0 = ∣ x + 3 ∣