2|x+2|=10

Lösung

2 ∣ x + 2 ∣ = 10

x = - 7 or x = 3

Schritte zur Lösung

2 ∣ x + 2 ∣ = 10

Teile beide Seiten durch

2

∣ x + 2 ∣ = 5

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

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

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

x = - 7 or x = 3

7.5 \times (- ∣ 2 x ∣ - 5) = - 112.5

∣ 10 x + 5 ∣ = ∣ 5 x + 10 ∣

∣ x + 3 ∣ = 2 ∣ x - 1 ∣

∣ 2 (x - 5) ∣ + 11 = 17

∣ 3 x - 5 ∣ - 6 = 4