| n/9 |=1

Lösung

\frac{n}{9} = 1

n = - 9 or n = 9

Schritte zur Lösung

\frac{n}{9} = 1

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

\frac{n}{9} = - 1 or \frac{n}{9} = 1

\frac{n}{9} = - 1 or \frac{n}{9} = 1

n = - 9 or n = 9

∣ 2 x - 3 ∣ - 4 = a x + b

∣ x + 1 ∣ + 7 = 5

3 = ∣ c - 5 ∣

∣ x + 5 ∣ = 2 x

8 ∣ 3 x - 10 ∣ - 12 = 20