|2k+1|=7

Lösung

∣ 2 k + 1 ∣ = 7

k = - 4 or k = 3

Schritte zur Lösung

∣ 2 k + 1 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 k + 1 = - 7 or 2 k + 1 = 7

2 k + 1 = - 7 or 2 k + 1 = 7

k = - 4 or k = 3

4 + 2 ∣ 8 - x ∣ = 15

∣ x - 6 ∣ + 2 x + 5 = 3

21 = ∣ 7 c ∣

∣ 100 - 5 x ∣ = 50

1 - 7 ∣ 7 m + 10 ∣ = 29