|x+7.5|=3

Lösung

∣ x + 7.5 ∣ = 3

x = - 10.5 or x = - 4.5

Schritte zur Lösung

∣ x + 7.5 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 7.5 = - 3 or x + 7.5 = 3

x + 7.5 = - 3 or x + 7.5 = 3

x = - 10.5 or x = - 4.5

∣ 5 - 7 x ∣ - 8 = - 1

∣ 2 (x + 1) + 4 ∣ = 10

∣ 3 x - 6 ∣ = 10

- 0.3 ∣ 3 + 8 x ∣ = 0.9

∣ 5 x ∣ = 6 - x