|n-2|=7

Lösung

∣ n - 2 ∣ = 7

n = - 5 or n = 9

Schritte zur Lösung

∣ n - 2 ∣ = 7

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

n - 2 = - 7 or n - 2 = 7

n - 2 = - 7 or n - 2 = 7

n = - 5 or n = 9

\frac{2 x + 1}{2} = x

∣ - 3 m - 3 ∣ = 21

8 x - 4 = 0.002

∣ 4 x + 10 ∣ = 0

∣ 3 x - 1 ∣ = - 8