|7x+7|=56

Lösung

∣ 7 x + 7 ∣ = 56

x = - 9 or x = 7

Schritte zur Lösung

∣ 7 x + 7 ∣ = 56

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 x + 7 = - 56 or 7 x + 7 = 56

7 x + 7 = - 56 or 7 x + 7 = 56

x = - 9 or x = 7

- 1 = 6 ∣ k ∣ - 4

4 - 5 ∣ 4 x - 2 ∣ = 41

- 6 ∣ 6 - 3 n ∣ = - 36

∣ 4 x - 4 ∣ = 14

∣ 4 x - 4 ∣ = 15