-10|9+x|=-30

Lösung

- 10 ∣ 9 + x ∣ = - 30

x = - 12 or x = - 6

Schritte zur Lösung

- 10 ∣ 9 + x ∣ = - 30

Teile beide Seiten durch

- 10

∣ 9 + x ∣ = 3

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

9 + x = - 3 or 9 + x = 3

9 + x = - 3 or 9 + x = 3

x = - 12 or x = - 6

∣ x ∣ = \frac{36}{10}

∣ a + 1 ∣ = 1

∣ - 9 n - 9 ∣ = 72

- 2 ∣ n ∣ = - 20

- 6 ∣ 5 - 2 x ∣ = - 9