-7|k+6|=-21

Lösung

- 7 ∣ k + 6 ∣ = - 21

k = - 9 or k = - 3

Schritte zur Lösung

- 7 ∣ k + 6 ∣ = - 21

Teile beide Seiten durch

- 7

∣ k + 6 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

k + 6 = - 3 or k + 6 = 3

k + 6 = - 3 or k + 6 = 3

k = - 9 or k = - 3

∣ x - 3 ∣ - 5 = 2 x

∣ 4 x - 1 ∣ = 2 x

∣ u - 175 ∣ - 2 = 223

∣ t + 4 ∣ - 6 = 10

3 ∣ 14 x + 11 ∣ - 9 = 12