(|x+1|)/3 =3

Lösung

\frac{∣ x + 1 ∣}{3} = 3

x = - 10 or x = 8

Schritte zur Lösung

\frac{∣ x + 1 ∣}{3} = 3

Multipliziere beide Seiten mit

3

∣ x + 1 ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 1 = - 9 or x + 1 = 9

x + 1 = - 9 or x + 1 = 9

x = - 10 or x = 8

2 ∣ 5 x - 4 ∣ - 5 = 9

∣ 7 x ∣ = 12

∣ x + 1 ∣ = ∣ x + 3 ∣

f (x) = ∣ x ∣

29 - 8 ∣ x ∣ = - 43