49=|u+7|

Lösung

49 = ∣ u + 7 ∣

u = - 56 or u = 42

Schritte zur Lösung

49 = ∣ u + 7 ∣

Tausche die Seiten

∣ u + 7 ∣ = 49

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

u + 7 = - 49 or u + 7 = 49

u + 7 = - 49 or u + 7 = 49

u = - 56 or u = 42

∣ - 14 x + 4 ∣ + 7 = 2

10 ∣ 1 + 3 p ∣ = 40

3 ∣ 2 x - 5 ∣ - 5 = 4

2 - 3 ∣ 7 x + 4 ∣ = - 91

so l v e f or x, y = ∣ 2 - x ∣