9=|2x-5|

Lösung

9 = ∣ 2 x - 5 ∣

x = - 2 or x = 7

Schritte zur Lösung

9 = ∣ 2 x - 5 ∣

Tausche die Seiten

∣ 2 x - 5 ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

2 x - 5 = - 9 or 2 x - 5 = 9

2 x - 5 = - 9 or 2 x - 5 = 9

x = - 2 or x = 7

∣ U - 2 ∣ = - \frac{1}{2}

2 ∣ 3 x - 4 ∣ + 1 = 3

∣ - 7 + y ∣ = 1313

∣ x + 2 ∣ + 7 = 1

∣ - 8 n ∣ = 80