|b-9|=0

Lösung

∣ b - 9 ∣ = 0

b = 9

Schritte zur Lösung

∣ b - 9 ∣ = 0

Wende Absoluteregel an: Wenn

∣ u ∣ = 0

dann

u = 0

b - 9 = 0

b - 9 = 0 : b = 9

b = 9

∣ 7 x - 2 ∣ = 2

5 ∣ x + 7 ∣ - 2 = 18

x^{2} + 3 ∣ x ∣ + 4 = 0

∣ x_{0} - 5 ∣ - 3 = 4

x^{2} - 12 x + 31 = 4