2|5x+3|=16

Lösung

2 ∣ 5 x + 3 ∣ = 16

x = - \frac{11}{5} or x = 1

Dezimale

x = - 2.2, x = 1

Schritte zur Lösung

2 ∣ 5 x + 3 ∣ = 16

Teile beide Seiten durch

2

∣ 5 x + 3 ∣ = 8

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 x + 3 = - 8 or 5 x + 3 = 8

5 x + 3 = - 8 or 5 x + 3 = 8

x = - \frac{11}{5} or x = 1

4 ∣ 3 x - 9 ∣ = 36

- 4 ∣ x + 7 ∣ = - 16

∣ 9 + 8 x ∣ = 31

∣ 2 v ∣ = \frac{10}{3}

∣ 9 - 9 x ∣ + 6 = 60