|2k+3|=7

Lösung

∣ 2 k + 3 ∣ = 7

k = - 5 or k = 2

Schritte zur Lösung

∣ 2 k + 3 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 k + 3 = - 7 or 2 k + 3 = 7

2 k + 3 = - 7 or 2 k + 3 = 7

k = - 5 or k = 2

28 = ∣ c - 14 ∣

5 - 8 ∣ - 2 x ∣ = - 75

∣ c + 13 ∣ = 23

\frac{y}{6} = 9

- 3 ∣ 4 x + 3 ∣ + 9 = - 3