|-9+2x|=5

Lösung

∣ - 9 + 2 x ∣ = 5

x = 2 or x = 7

Schritte zur Lösung

∣ - 9 + 2 x ∣ = 5

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 9 + 2 x = - 5 or - 9 + 2 x = 5

- 9 + 2 x = - 5 or - 9 + 2 x = 5

x = 2 or x = 7

- 6 ∣ u ∣ = 0

10 + 9 ∣ 6 + n ∣ = 37

7 ∣ x - 6 ∣ = 34

∣ 8 n + 3 ∣ = 5

7 ∣ x - 6 ∣ = 30