21|5-12x|=7

Lösung

21 ∣ 5 - 12 x ∣ = 7

x = \frac{7}{18} or x = \frac{4}{9}

Dezimale

x = 0.38888 \dots, x = 0.44444 \dots

Schritte zur Lösung

21 ∣ 5 - 12 x ∣ = 7

Teile beide Seiten durch

21

∣ 5 - 12 x ∣ = \frac{1}{3}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 - 12 x = - \frac{1}{3} or 5 - 12 x = \frac{1}{3}

5 - 12 x = - \frac{1}{3} or 5 - 12 x = \frac{1}{3}

x = \frac{7}{18} or x = \frac{4}{9}

∣ c - x ∣ = 11

∣ c + 3 ∣ + 6 = 90

- 5 \frac{n}{3} = - 5

- 7 ∣ - n + 3 ∣ - 6 = - 90

∣ 5 z + 6 ∣ - 19 = 0