|n-7|=12

Lösung

∣ n - 7 ∣ = 12

n = - 5 or n = 19

Schritte zur Lösung

∣ n - 7 ∣ = 12

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

n - 7 = - 12 or n - 7 = 12

n - 7 = - 12 or n - 7 = 12

n = - 5 or n = 19

- 31 = ∣ c + 9 ∣

∣ - 2 x + 3 ∣ = 5.8

∣ 2 x + 5 ∣ - 5 = - 2

∣ a + 2 ∣ + 9 = 6

∣ 2 x + 1 ∣ = 5 x