|900-5u|=200

Lösung

∣ 900 - 5 u ∣ = 200

u = 140 or u = 220

Schritte zur Lösung

∣ 900 - 5 u ∣ = 200

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

900 - 5 u = - 200 or 900 - 5 u = 200

900 - 5 u = - 200 or 900 - 5 u = 200

u = 140 or u = 220

∣ x + 4 ∣ = - 3 x

9 + 6 ∣ - 8 x + 7 ∣ = 3

4 ∣ 3 x - 4 ∣ = 20

∣ 10 n + 9 ∣ + 9 = 1

- 3 + 10 ∣ 8 n - 10 ∣ = 17