81=|9x|

Lösung

81 = ∣ 9 x ∣

x = - 9 or x = 9

Schritte zur Lösung

81 = ∣ 9 x ∣

Tausche die Seiten

∣ 9 x ∣ = 81

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

9 x = - 81 or 9 x = 81

9 x = - 81 or 9 x = 81

x = - 9 or x = 9

∣ 5 x - 2 ∣ + 3 = 9

- 12 = - 2 ∣ g ∣

∣ x - 8 ∣ + 8 = 8

∣ x - 1 ∣ = 15 x + 3

4 ∣ 7 - 3 d ∣ - 9 = 19