|2x|=9

Lösung

∣ 2 x ∣ = 9

x = - \frac{9}{2} or x = \frac{9}{2}

Dezimale

x = - 4.5, x = 4.5

Schritte zur Lösung

∣ 2 x ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x = - 9 or 2 x = 9

2 x = - 9 or 2 x = 9

x = - \frac{9}{2} or x = \frac{9}{2}

- 2 ∣ x + 5 ∣ + 4 = 2

∣ 4 x + 1 ∣ - 5 = 2 x

∣ - 2 x ∣ = 6

∣ r + 8 ∣ = 8

∣ 5 b + 9 ∣ + 16 = 2