9=|-3f|

Lösung

9 = ∣ - 3 f ∣

f = - 3 or f = 3

Schritte zur Lösung

9 = ∣ - 3 f ∣

Tausche die Seiten

∣ - 3 f ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 3 f = - 9 or - 3 f = 9

- 3 f = - 9 or - 3 f = 9

f = - 3 or f = 3

3 - 6 ∣ - 4 a - 9 ∣ = 81

2 ∣ 3 v - 6 ∣ + 12 = 12

- 8 = - 2 ∣ q ∣

∣ 5 x + 9 ∣ - 18 = 0

∣ 2 x - 3 ∣ + 4 = 2