|-2x+5|=7

Lösung

∣ - 2 x + 5 ∣ = 7

x = - 1 or x = 6

Schritte zur Lösung

∣ - 2 x + 5 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

- 2 x + 5 = - 7 or - 2 x + 5 = 7

- 2 x + 5 = - 7 or - 2 x + 5 = 7

x = - 1 or x = 6

\frac{∣ x - 9 ∣}{10} = 5

∣ 5 x + 1 ∣ = - 6

∣ 3 - x ∣ = 4 - 2 x

∣ 2 x - 9 ∣ = 11

∣ x ∣ = 12 - x^{2}