20=|1-3c|

Lösung

20 = ∣ 1 - 3 c ∣

c = - \frac{19}{3} or c = 7

Dezimale

c = - 6.33333 \dots, c = 7

Schritte zur Lösung

20 = ∣ 1 - 3 c ∣

Tausche die Seiten

∣ 1 - 3 c ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

1 - 3 c = - 20 or 1 - 3 c = 20

1 - 3 c = - 20 or 1 - 3 c = 20

c = - \frac{19}{3} or c = 7

15 = ∣ b - 11 ∣

- ∣ 3 x - 7 ∣ + 7 = 4

\frac{b}{12} = 10

10 = \frac{y}{5}

∣ 9 + 3 c ∣ = 15