|7x-9|=12

Lösung

∣ 7 x - 9 ∣ = 12

x = - \frac{3}{7} or x = 3

Dezimale

x = - 0.42857 \dots, x = 3

Schritte zur Lösung

∣ 7 x - 9 ∣ = 12

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

7 x - 9 = - 12 or 7 x - 9 = 12

7 x - 9 = - 12 or 7 x - 9 = 12

x = - \frac{3}{7} or x = 3

8 - 4 ∣ 2 x - 1 ∣ = - 16

- ∣ 9 v - 2 ∣ + 3 = - 76

\frac{2}{3} x - 1 = 5

∣ x ∣ - 6 = 3

- 8 ∣ x ∣ = - 16