-7|3x-4|=-21

Lösung

- 7 ∣ 3 x - 4 ∣ = - 21

x = \frac{1}{3} or x = \frac{7}{3}

Dezimale

x = 0.33333 \dots, x = 2.33333 \dots

Schritte zur Lösung

- 7 ∣ 3 x - 4 ∣ = - 21

Teile beide Seiten durch

- 7

∣ 3 x - 4 ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

3 x - 4 = - 3 or 3 x - 4 = 3

3 x - 4 = - 3 or 3 x - 4 = 3

x = \frac{1}{3} or x = \frac{7}{3}

∣ z ∣ = - 9

∣ v - 2 ∣ = - 8

∣ z ∣ = - 5

∣ 4 x + 3 ∣ = 10

∣ 4 x + 3 ∣ = 11