|6x+9|=21

Lösung

∣ 6 x + 9 ∣ = 21

x = - 5 or x = 2

Schritte zur Lösung

∣ 6 x + 9 ∣ = 21

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

6 x + 9 = - 21 or 6 x + 9 = 21

6 x + 9 = - 21 or 6 x + 9 = 21

x = - 5 or x = 2

∣ 5 - 4 x ∣ = 4

∣ 10 - 7 g ∣ = 2 g

5 - 5 ∣ 7 - 4 m ∣ = 5

3 ∣ 8 + d ∣ - 1 = 29

x^{2} + 6 x = 9