|11+x|=4

Lösung

∣ 11 + x ∣ = 4

x = - 15 or x = - 7

Schritte zur Lösung

∣ 11 + x ∣ = 4

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

11 + x = - 4 or 11 + x = 4

11 + x = - 4 or 11 + x = 4

x = - 15 or x = - 7

21 = ∣ 7 y ∣

- 3 ∣ x - 1 ∣ - 6 = 3

x^{2} - x - 4 = 2

5 ∣ 3 x - 4 ∣ = x + 1

∣ 4 x - 7 ∣ + 7 = 3 x