(|4n+5|)/2 =3

Lösung

\frac{∣ 4 n + 5 ∣}{2} = 3

n = - \frac{11}{4} or n = \frac{1}{4}

Dezimale

n = - 2.75, n = 0.25

Schritte zur Lösung

\frac{∣ 4 n + 5 ∣}{2} = 3

Multipliziere beide Seiten mit

2

∣ 4 n + 5 ∣ = 6

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

4 n + 5 = - 6 or 4 n + 5 = 6

4 n + 5 = - 6 or 4 n + 5 = 6

n = - \frac{11}{4} or n = \frac{1}{4}

\frac{2}{3} z - 6 = 12

5 = ∣ t + 2 ∣

2 ∣ 5 x ∣ - 7 = 5

7 = ∣ - 6 x ∣

∣ 1 - 4 x ∣ = 11