8=|7+5x|

Lösung

8 = ∣ 7 + 5 x ∣

x = - 3 or x = \frac{1}{5}

Dezimale

x = - 3, x = 0.2

Schritte zur Lösung

8 = ∣ 7 + 5 x ∣

Tausche die Seiten

∣ 7 + 5 x ∣ = 8

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 + 5 x = - 8 or 7 + 5 x = 8

7 + 5 x = - 8 or 7 + 5 x = 8

x = - 3 or x = \frac{1}{5}

4 = ∣ 3 x + 2 ∣

2 ∣ x + 1 ∣ - x = 3 x - 4

∣ 6 - 5 x ∣ - 4 = 2

∣ - 1 + 4 c ∣ = 41

18 = ∣ 6 a ∣