45=|a+3|

Lösung

45 = ∣ a + 3 ∣

a = - 48 or a = 42

Schritte zur Lösung

45 = ∣ a + 3 ∣

Tausche die Seiten

∣ a + 3 ∣ = 45

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

a + 3 = - 45 or a + 3 = 45

a + 3 = - 45 or a + 3 = 45

a = - 48 or a = 42

- ∣ x ∣ = - 8

∣ 3 x - 5 ∣ = 11

∣ d - 4 ∣ = - 2

∣ 8 x + 3 ∣ = 0

2 ∣ x - 4 ∣ - 3 = 5