(|w+9|)/7 =2

Lösung

\frac{∣ w + 9 ∣}{7} = 2

w = - 23 or w = 5

Schritte zur Lösung

\frac{∣ w + 9 ∣}{7} = 2

Multipliziere beide Seiten mit

7

∣ w + 9 ∣ = 14

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

w + 9 = - 14 or w + 9 = 14

w + 9 = - 14 or w + 9 = 14

w = - 23 or w = 5

∣ 4 x - 2 ∣ + 10 = 16

10 ∣ 2 x - 1 ∣ + 9 = 59

4 ∣ 2 x - 7 ∣ = - 12

2 ∣ 6 x - 3 ∣ - 9 = 4 x + 21

∣ 3 x - 12 ∣ + 3 = 48