|2u+11|=3

Lösung

∣ 2 u + 11 ∣ = 3

u = - 7 or u = - 4

Schritte zur Lösung

∣ 2 u + 11 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 u + 11 = - 3 or 2 u + 11 = 3

2 u + 11 = - 3 or 2 u + 11 = 3

u = - 7 or u = - 4

9 \frac{x}{4} - 10 = 8

∣ x + 11 ∣ = 14

7 - 6 ∣ - 9 x + 1 ∣ = 55

\frac{1}{5} a + 2 = 7

2 ∣ u - 1 ∣ = u