4=|u-2|

Lösung

4 = ∣ u - 2 ∣

u = - 2 or u = 6

Schritte zur Lösung

4 = ∣ u - 2 ∣

Tausche die Seiten

∣ u - 2 ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

u - 2 = - 4 or u - 2 = 4

u - 2 = - 4 or u - 2 = 4

u = - 2 or u = 6

15 = ∣ y + 4 ∣ + 3

∣ 5 x + 9 ∣ + 16 = 22

so l v e f or x, 6 ∣ x ∣ + y = 2

9 = ∣ - 3 f ∣

3 - 6 ∣ - 4 a - 9 ∣ = 81