|5-7x|=9

Lösung

∣ 5 - 7 x ∣ = 9

x = - \frac{4}{7} or x = 2

Dezimale

x = - 0.57142 \dots, x = 2

Schritte zur Lösung

∣ 5 - 7 x ∣ = 9

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 - 7 x = - 9 or 5 - 7 x = 9

5 - 7 x = - 9 or 5 - 7 x = 9

x = - \frac{4}{7} or x = 2

4 = ∣ v - 3 ∣

2 + ∣ 2 x - 4 ∣ = 10

∣ 3 x - 1 ∣ = 2 x - 3

2 ∣ x + 5 ∣ = 0

∣ - 2 d ∣ = 14