|5x-5|=15

Lösung

∣ 5 x - 5 ∣ = 15

x = - 2 or x = 4

Schritte zur Lösung

∣ 5 x - 5 ∣ = 15

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 x - 5 = - 15 or 5 x - 5 = 15

5 x - 5 = - 15 or 5 x - 5 = 15

x = - 2 or x = 4

∣ 5 x - 2 ∣ = 4 x - 5

∣ 5 x - 2 ∣ = 4 x - 3

∣ 2 x - 2 ∣ = 3 x - 13

∣ 2 x + 1 ∣ = x + 11

so l v e f or y, x = ∣ y - 3 ∣