|2w+4|-21=-9

Lösung

∣ 2 w + 4 ∣ - 21 = - 9

w = - 8 or w = 4

Schritte zur Lösung

∣ 2 w + 4 ∣ - 21 = - 9

Verschiebe

21

auf die rechte Seite

∣ 2 w + 4 ∣ = 12

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 w + 4 = - 12 or 2 w + 4 = 12

2 w + 4 = - 12 or 2 w + 4 = 12

w = - 8 or w = 4

∣ x - 2 ∣ = 5 (x + 3)

10 = ∣ n - 2 ∣ + 7

13 - ∣ x ∣ = 4

∣ 2 x - 3 ∣ = - 4

∣ 7 - 2 r ∣ = 0