|2x-9|=13

Lösung

∣ 2 x - 9 ∣ = 13

x = - 2 or x = 11

Schritte zur Lösung

∣ 2 x - 9 ∣ = 13

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x - 9 = - 13 or 2 x - 9 = 13

2 x - 9 = - 13 or 2 x - 9 = 13

x = - 2 or x = 11

\frac{x + 3}{3} = 1

3 - ∣ 2 x - 6 ∣ = 3

0 = - 2 ∣ 6 t ∣

∣ x ∣ + 2 = 5

∣ x ∣ + 2 = 8