2|x+7|=5

Lösung

2 ∣ x + 7 ∣ = 5

x = - \frac{19}{2} or x = - \frac{9}{2}

Dezimale

x = - 9.5, x = - 4.5

Schritte zur Lösung

2 ∣ x + 7 ∣ = 5

Teile beide Seiten durch

2

∣ x + 7 ∣ = \frac{5}{2}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

x + 7 = - \frac{5}{2} or x + 7 = \frac{5}{2}

x + 7 = - \frac{5}{2} or x + 7 = \frac{5}{2}

x = - \frac{19}{2} or x = - \frac{9}{2}

∣ 1 + x ∣ = 1

5 = ∣ 5 - 3 x ∣

∣ 4 x - 14 ∣ - 9 = - 3

- 3 = ∣ v ∣ - 3

\frac{∣ 2 w - 4 ∣}{6} = 3