-7*|z+11|=-105

Lösung

- 7 \cdot ∣ z + 11 ∣ = - 105

z = - 26 or z = 4

Schritte zur Lösung

- 7 ∣ z + 11 ∣ = - 105

Teile beide Seiten durch

- 7

∣ z + 11 ∣ = 15

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

z + 11 = - 15 or z + 11 = 15

z + 11 = - 15 or z + 11 = 15

z = - 26 or z = 4

∣ 2 x + 6 ∣ = 7

∣ 2 x + 6 ∣ = 6

∣ 2 x + 6 ∣ = 5

x^{2} - ∣ x ∣ - 72 = 0

∣ z ∣ + 7 = 17