-3|x+2|=-9

Lösung

- 3 ∣ x + 2 ∣ = - 9

x = - 5 or x = 1

Schritte zur Lösung

- 3 ∣ x + 2 ∣ = - 9

Teile beide Seiten durch

- 3

∣ x + 2 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 2 = - 3 or x + 2 = 3

x + 2 = - 3 or x + 2 = 3

x = - 5 or x = 1

- 5 ∣ 5 m - 5 ∣ + 2 = - 73

∣ a ∣ = 1

x^{2} - 6 = 10

∣ 4 x + 7 ∣ - 3 = 17

2 + ∣ - 1 - x ∣ = - 8