|7a|=70

Lösung

∣ 7 a ∣ = 70

a = - 10 or a = 10

Schritte zur Lösung

∣ 7 a ∣ = 70

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 a = - 70 or 7 a = 70

7 a = - 70 or 7 a = 70

a = - 10 or a = 10

4 ∣ x + 6 ∣ = 20

∣ a x + b ∣ = c

∣ 2 x - 7 ∣ = x - 3

5 ∣ x - 4 ∣ = 14

∣ - 3 x - 5 ∣ = 10