(|5a-8|)/4 =5

Lösung

\frac{∣ 5 a - 8 ∣}{4} = 5

a = - \frac{12}{5} or a = \frac{28}{5}

Dezimale

a = - 2.4, a = 5.6

Schritte zur Lösung

\frac{∣ 5 a - 8 ∣}{4} = 5

Multipliziere beide Seiten mit

4

∣ 5 a - 8 ∣ = 20

Wende Absoluteregel an: Wenn

∣ u ∣ = a, a > 0

dann

u = a

u = - a

5 a - 8 = - 20 or 5 a - 8 = 20

5 a - 8 = - 20 or 5 a - 8 = 20

a = - \frac{12}{5} or a = \frac{28}{5}

3 ∣ x - 4 ∣ = 10, x

∣ - 5 y - 5 ∣ = 10

∣ 9 - 4 y ∣ = 20

5 ∣ x - 6 ∣ = 12

4 ∣ q ∣ = 0