9|x-3|=9

Lösung

9 ∣ x - 3 ∣ = 9

x = 2 or x = 4

Schritte zur Lösung

9 ∣ x - 3 ∣ = 9

Teile beide Seiten durch

9

∣ x - 3 ∣ = 1

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x - 3 = - 1 or x - 3 = 1

x - 3 = - 1 or x - 3 = 1

x = 2 or x = 4

∣ x + 6 ∣ = 15

7 - ∣ 4 x - 3 ∣ = - 5

∣ 4 - 5 x ∣ = 7

∣ x ∣ + x^{2} - 1 - x^{2} = 0

∣ v ∣ + 13 = 20