45=|c-20|

Lösung

45 = ∣ c - 20 ∣

c = - 25 or c = 65

Schritte zur Lösung

45 = ∣ c - 20 ∣

Tausche die Seiten

∣ c - 20 ∣ = 45

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

c - 20 = - 45 or c - 20 = 45

c - 20 = - 45 or c - 20 = 45

c = - 25 or c = 65

∣ 4 + 3 x ∣ = 6

∣ 3 - 2 x ∣ = 5

∣ 2 x - 1 ∣ - 4 = x

∣ 5 x + 1 ∣ - 5 = x

∣ 7 x + 5 ∣ = 19