3|x+3|=12

Lösung

3 ∣ x + 3 ∣ = 12

x = - 7 or x = 1

Schritte zur Lösung

3 ∣ x + 3 ∣ = 12

Teile beide Seiten durch

3

∣ x + 3 ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 3 = - 4 or x + 3 = 4

x + 3 = - 4 or x + 3 = 4

x = - 7 or x = 1

∣ 3 - 5 x ∣ + 1 = 2 x - 3

∣ 2 x + 3 ∣ = 0

∣ 3 x + 5 ∣ = 4

∣ 11 x - 4 ∣ = - 26

∣ 2 x - 8 ∣ = 10