3|2x+1|=9

Lösung

3 ∣ 2 x + 1 ∣ = 9

x = - 2 or x = 1

Schritte zur Lösung

3 ∣ 2 x + 1 ∣ = 9

Teile beide Seiten durch

3

∣ 2 x + 1 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x + 1 = - 3 or 2 x + 1 = 3

2 x + 1 = - 3 or 2 x + 1 = 3

x = - 2 or x = 1

0 = ∣ - 7 p - 70 ∣

∣ x - 1 ∣ - x^{2} + 2 = 0

- 3 ∣ 3 t - 4 ∣ - 12 = - 6

∣ 2 x + 7 ∣ = x - 1

3 ∣ x - 5 ∣ = - 2 x - 7