|x|= 2/5

Lösung

∣ x ∣ = \frac{2}{5}

x = - \frac{2}{5} or x = \frac{2}{5}

Dezimale

x = - 0.4, x = 0.4

Schritte zur Lösung

∣ x ∣ = \frac{2}{5}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x = - \frac{2}{5} or x = \frac{2}{5}

∣ 2 x + 5 ∣ + 7 = 3

∣ - A ∣ = - 2

∣ 5 - 2 x ∣ = 15

8 - 12 ∣ k - 5 ∣ = - 4

∣ x - 3 ∣ = 2 x + 1