|-4f|=4

Lösung

∣ - 4 f ∣ = 4

f = - 1 or f = 1

Schritte zur Lösung

∣ - 4 f ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 4 f = - 4 or - 4 f = 4

- 4 f = - 4 or - 4 f = 4

f = - 1 or f = 1

∣ 3 x + 4 ∣ = 2 x + 1

∣ 5 x ∣ + 3 = 18

∣ 15 + x ∣ = 4

6 = ∣ z - 1 ∣

∣ 3 x + 4 ∣ = 2 x - 1