|x+7|=8

Lösung

∣ x + 7 ∣ = 8

x = - 15 or x = 1

Schritte zur Lösung

∣ x + 7 ∣ = 8

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 7 = - 8 or x + 7 = 8

x + 7 = - 8 or x + 7 = 8

x = - 15 or x = 1

∣ x + 7 ∣ = 4

∣ 2 x + 4 ∣ = 0

∣ 18 x + 15 ∣ = 9

3 \frac{x}{3} - 4 = 12

∣ 3 x - 6 ∣ - 7 = 14