-19|n-7|=-18

Lösung

- 19 ∣ n - 7 ∣ = - 18

n = \frac{115}{19} or n = \frac{151}{19}

Dezimale

n = 6.05263 \dots, n = 7.94736 \dots

Schritte zur Lösung

- 19 ∣ n - 7 ∣ = - 18

Teile beide Seiten durch

- 19

∣ n - 7 ∣ = \frac{18}{19}

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

n - 7 = - \frac{18}{19} or n - 7 = \frac{18}{19}

n - 7 = - \frac{18}{19} or n - 7 = \frac{18}{19}

n = \frac{115}{19} or n = \frac{151}{19}

∣ 3 x + 2 ∣ = - 4

∣ 3 x - 6 ∣ - 5 = - 7

∣ 4 x - 23 ∣ = x - 2

∣ - 1 - 3 x ∣ - 8 = 14

∣ 10 - x ∣ = 1